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Finding the Fourth Proportional to 54,032.40, 81,013.40 and 48,502.80

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Solution

The fourth proportional to 54,032.40, 81,013.40 and 48,502.80 is: 72,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,032.40 : 81,013.40 = 48,502.80 : x
  2. Step 2: Convert to fraction form
    54,032.40/81,013.40 = 48,502.80/x
  3. Step 3: Cross multiply
    54,032.40x = 81,013.40 × 48,502.80
  4. Step 4: Simplify right side
    54,032.40x = 3,929,376,737.52
  5. Step 5: Solve for x
    x = 3,929,376,737.52/54,032.40
  6. Step 6: Final answer
    x = 72,722.60

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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.