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Finding the Fourth Proportional to 17,912.95, 24,718.95 and 9,955.76

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Solution

The fourth proportional to 17,912.95, 24,718.95 and 9,955.76 is: 13,738.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,912.95 : 24,718.95 = 9,955.76 : x
  2. Step 2: Convert to fraction form
    17,912.95/24,718.95 = 9,955.76/x
  3. Step 3: Cross multiply
    17,912.95x = 24,718.95 × 9,955.76
  4. Step 4: Simplify right side
    17,912.95x = 246,095,921.10
  5. Step 5: Solve for x
    x = 246,095,921.10/17,912.95
  6. Step 6: Final answer
    x = 13,738.44

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Half scale
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Double scale
Find fourth proportional to 17,913.95, 24,720.33 and 9,956.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.