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Finding the Fourth Proportional to 39,358.48, 59,046.11 and 12,705.99

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Solution

The fourth proportional to 39,358.48, 59,046.11 and 12,705.99 is: 19,061.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,358.48 : 59,046.11 = 12,705.99 : x
  2. Step 2: Convert to fraction form
    39,358.48/59,046.11 = 12,705.99/x
  3. Step 3: Cross multiply
    39,358.48x = 59,046.11 × 12,705.99
  4. Step 4: Simplify right side
    39,358.48x = 750,239,167.35
  5. Step 5: Solve for x
    x = 750,239,167.35/39,358.48
  6. Step 6: Final answer
    x = 19,061.69

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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.