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Finding the Fourth Proportional to 75,502.60, 113,286.30 and 38,566.60

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Solution

The fourth proportional to 75,502.60, 113,286.30 and 38,566.60 is: 57,866.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,502.60 : 113,286.30 = 38,566.60 : x
  2. Step 2: Convert to fraction form
    75,502.60/113,286.30 = 38,566.60/x
  3. Step 3: Cross multiply
    75,502.60x = 113,286.30 × 38,566.60
  4. Step 4: Simplify right side
    75,502.60x = 4,369,067,417.58
  5. Step 5: Solve for x
    x = 4,369,067,417.58/75,502.60
  6. Step 6: Final answer
    x = 57,866.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.