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Finding the Fourth Proportional to 91,085.71, 136,618.31 and 24,530.71

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Solution

The fourth proportional to 91,085.71, 136,618.31 and 24,530.71 is: 36,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,085.71 : 136,618.31 = 24,530.71 : x
  2. Step 2: Convert to fraction form
    91,085.71/136,618.31 = 24,530.71/x
  3. Step 3: Cross multiply
    91,085.71x = 136,618.31 × 24,530.71
  4. Step 4: Simplify right side
    91,085.71x = 3,351,344,020.65
  5. Step 5: Solve for x
    x = 3,351,344,020.65/91,085.71
  6. Step 6: Final answer
    x = 36,793.30

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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.