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Finding the Fourth Proportional to 9,812.56, 14,718.84 and 2,887.06

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Solution

The fourth proportional to 9,812.56, 14,718.84 and 2,887.06 is: 4,330.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,812.56 : 14,718.84 = 2,887.06 : x
  2. Step 2: Convert to fraction form
    9,812.56/14,718.84 = 2,887.06/x
  3. Step 3: Cross multiply
    9,812.56x = 14,718.84 × 2,887.06
  4. Step 4: Simplify right side
    9,812.56x = 42,494,174.21
  5. Step 5: Solve for x
    x = 42,494,174.21/9,812.56
  6. Step 6: Final answer
    x = 4,330.59

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.