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Finding the Fourth Proportional to 52,240.62, 72,090 and 28,366.68

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Solution

The fourth proportional to 52,240.62, 72,090 and 28,366.68 is: 39,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,240.62 : 72,090 = 28,366.68 : x
  2. Step 2: Convert to fraction form
    52,240.62/72,090 = 28,366.68/x
  3. Step 3: Cross multiply
    52,240.62x = 72,090 × 28,366.68
  4. Step 4: Simplify right side
    52,240.62x = 2,044,953,961.20
  5. Step 5: Solve for x
    x = 2,044,953,961.20/52,240.62
  6. Step 6: Final answer
    x = 39,144.90

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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.