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Finding the Fourth Proportional to 45,138.96, 67,707.96 and 17,417.52

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Solution

The fourth proportional to 45,138.96, 67,707.96 and 17,417.52 is: 26,126.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,138.96 : 67,707.96 = 17,417.52 : x
  2. Step 2: Convert to fraction form
    45,138.96/67,707.96 = 17,417.52/x
  3. Step 3: Cross multiply
    45,138.96x = 67,707.96 × 17,417.52
  4. Step 4: Simplify right side
    45,138.96x = 1,179,304,747.46
  5. Step 5: Solve for x
    x = 1,179,304,747.46/45,138.96
  6. Step 6: Final answer
    x = 26,126.09

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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.