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Finding the Fourth Proportional to 26,658.29, 39,929.92 and 12,597.10

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Solution

The fourth proportional to 26,658.29, 39,929.92 and 12,597.10 is: 18,868.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,658.29 : 39,929.92 = 12,597.10 : x
  2. Step 2: Convert to fraction form
    26,658.29/39,929.92 = 12,597.10/x
  3. Step 3: Cross multiply
    26,658.29x = 39,929.92 × 12,597.10
  4. Step 4: Simplify right side
    26,658.29x = 503,001,195.23
  5. Step 5: Solve for x
    x = 503,001,195.23/26,658.29
  6. Step 6: Final answer
    x = 18,868.47

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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.