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Finding the Fourth Proportional to 52,168.90, 71,992.41 and 28,294.90

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Solution

The fourth proportional to 52,168.90, 71,992.41 and 28,294.90 is: 39,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,168.90 : 71,992.41 = 28,294.90 : x
  2. Step 2: Convert to fraction form
    52,168.90/71,992.41 = 28,294.90/x
  3. Step 3: Cross multiply
    52,168.90x = 71,992.41 × 28,294.90
  4. Step 4: Simplify right side
    52,168.90x = 2,037,018,041.71
  5. Step 5: Solve for x
    x = 2,037,018,041.71/52,168.90
  6. Step 6: Final answer
    x = 39,046.60

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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.