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Finding the Fourth Proportional to 16,560.78, 24,802.89 and 9,972.45

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Solution

The fourth proportional to 16,560.78, 24,802.89 and 9,972.45 is: 14,935.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,560.78 : 24,802.89 = 9,972.45 : x
  2. Step 2: Convert to fraction form
    16,560.78/24,802.89 = 9,972.45/x
  3. Step 3: Cross multiply
    16,560.78x = 24,802.89 × 9,972.45
  4. Step 4: Simplify right side
    16,560.78x = 247,345,580.38
  5. Step 5: Solve for x
    x = 247,345,580.38/16,560.78
  6. Step 6: Final answer
    x = 14,935.62

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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.