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Finding the Fourth Proportional to 14,998.88, 20,697.44 and 8,283.18

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Solution

The fourth proportional to 14,998.88, 20,697.44 and 8,283.18 is: 11,430.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,998.88 : 20,697.44 = 8,283.18 : x
  2. Step 2: Convert to fraction form
    14,998.88/20,697.44 = 8,283.18/x
  3. Step 3: Cross multiply
    14,998.88x = 20,697.44 × 8,283.18
  4. Step 4: Simplify right side
    14,998.88x = 171,440,621.06
  5. Step 5: Solve for x
    x = 171,440,621.06/14,998.88
  6. Step 6: Final answer
    x = 11,430.23

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Double scale
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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.