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Finding the Fourth Proportional to 39,414.82, 59,122.08 and 11,712.82

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Solution

The fourth proportional to 39,414.82, 59,122.08 and 11,712.82 is: 17,569.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,414.82 : 59,122.08 = 11,712.82 : x
  2. Step 2: Convert to fraction form
    39,414.82/59,122.08 = 11,712.82/x
  3. Step 3: Cross multiply
    39,414.82x = 59,122.08 × 11,712.82
  4. Step 4: Simplify right side
    39,414.82x = 692,486,281.07
  5. Step 5: Solve for x
    x = 692,486,281.07/39,414.82
  6. Step 6: Final answer
    x = 17,569.19

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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.