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Finding the Fourth Proportional to 70,687.47, 106,046.90 and 23,317.26

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Solution

The fourth proportional to 70,687.47, 106,046.90 and 23,317.26 is: 34,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,687.47 : 106,046.90 = 23,317.26 : x
  2. Step 2: Convert to fraction form
    70,687.47/106,046.90 = 23,317.26/x
  3. Step 3: Cross multiply
    70,687.47x = 106,046.90 × 23,317.26
  4. Step 4: Simplify right side
    70,687.47x = 2,472,723,139.49
  5. Step 5: Solve for x
    x = 2,472,723,139.49/70,687.47
  6. Step 6: Final answer
    x = 34,981.07

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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.