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Finding the Fourth Proportional to 60,124.70, 82,957.14 and 38,878.40

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Solution

The fourth proportional to 60,124.70, 82,957.14 and 38,878.40 is: 53,642.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,124.70 : 82,957.14 = 38,878.40 : x
  2. Step 2: Convert to fraction form
    60,124.70/82,957.14 = 38,878.40/x
  3. Step 3: Cross multiply
    60,124.70x = 82,957.14 × 38,878.40
  4. Step 4: Simplify right side
    60,124.70x = 3,225,240,871.78
  5. Step 5: Solve for x
    x = 3,225,240,871.78/60,124.70
  6. Step 6: Final answer
    x = 53,642.53

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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.