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Finding the Fourth Proportional to 14,459.76, 19,940.10 and 10,883.28

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Solution

The fourth proportional to 14,459.76, 19,940.10 and 10,883.28 is: 15,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,459.76 : 19,940.10 = 10,883.28 : x
  2. Step 2: Convert to fraction form
    14,459.76/19,940.10 = 10,883.28/x
  3. Step 3: Cross multiply
    14,459.76x = 19,940.10 × 10,883.28
  4. Step 4: Simplify right side
    14,459.76x = 217,013,691.53
  5. Step 5: Solve for x
    x = 217,013,691.53/14,459.76
  6. Step 6: Final answer
    x = 15,008.11

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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.