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Finding the Fourth Proportional to 52,319.82, 72,199.82 and 29,660.90

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Solution

The fourth proportional to 52,319.82, 72,199.82 and 29,660.90 is: 40,931.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,319.82 : 72,199.82 = 29,660.90 : x
  2. Step 2: Convert to fraction form
    52,319.82/72,199.82 = 29,660.90/x
  3. Step 3: Cross multiply
    52,319.82x = 72,199.82 × 29,660.90
  4. Step 4: Simplify right side
    52,319.82x = 2,141,511,641.04
  5. Step 5: Solve for x
    x = 2,141,511,641.04/52,319.82
  6. Step 6: Final answer
    x = 40,931.17

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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.