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Finding the Fourth Proportional to 61,728.32, 92,592.48 and 14,981.20

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Solution

The fourth proportional to 61,728.32, 92,592.48 and 14,981.20 is: 22,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,728.32 : 92,592.48 = 14,981.20 : x
  2. Step 2: Convert to fraction form
    61,728.32/92,592.48 = 14,981.20/x
  3. Step 3: Cross multiply
    61,728.32x = 92,592.48 × 14,981.20
  4. Step 4: Simplify right side
    61,728.32x = 1,387,146,461.38
  5. Step 5: Solve for x
    x = 1,387,146,461.38/61,728.32
  6. Step 6: Final answer
    x = 22,471.80

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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.