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Finding the Fourth Proportional to 58,720.78, 88,081.17 and 17,167.78

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Solution

The fourth proportional to 58,720.78, 88,081.17 and 17,167.78 is: 25,751.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,720.78 : 88,081.17 = 17,167.78 : x
  2. Step 2: Convert to fraction form
    58,720.78/88,081.17 = 17,167.78/x
  3. Step 3: Cross multiply
    58,720.78x = 88,081.17 × 17,167.78
  4. Step 4: Simplify right side
    58,720.78x = 1,512,158,148.70
  5. Step 5: Solve for x
    x = 1,512,158,148.70/58,720.78
  6. Step 6: Final answer
    x = 25,751.67

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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.