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Finding the Fourth Proportional to 52,479.09, 72,418.50 and 29,815.11

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Solution

The fourth proportional to 52,479.09, 72,418.50 and 29,815.11 is: 41,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,479.09 : 72,418.50 = 29,815.11 : x
  2. Step 2: Convert to fraction form
    52,479.09/72,418.50 = 29,815.11/x
  3. Step 3: Cross multiply
    52,479.09x = 72,418.50 × 29,815.11
  4. Step 4: Simplify right side
    52,479.09x = 2,159,165,543.54
  5. Step 5: Solve for x
    x = 2,159,165,543.54/52,479.09
  6. Step 6: Final answer
    x = 41,143.35

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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.