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Finding the Fourth Proportional to 52,458.80, 72,386.86 and 29,789.60

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Solution

The fourth proportional to 52,458.80, 72,386.86 and 29,789.60 is: 41,106.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,458.80 : 72,386.86 = 29,789.60 : x
  2. Step 2: Convert to fraction form
    52,458.80/72,386.86 = 29,789.60/x
  3. Step 3: Cross multiply
    52,458.80x = 72,386.86 × 29,789.60
  4. Step 4: Simplify right side
    52,458.80x = 2,156,375,604.66
  5. Step 5: Solve for x
    x = 2,156,375,604.66/52,458.80
  6. Step 6: Final answer
    x = 41,106.08

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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.