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Finding the Fourth Proportional to 60,078.48, 90,116.73 and 17,958.66

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Solution

The fourth proportional to 60,078.48, 90,116.73 and 17,958.66 is: 26,937.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,078.48 : 90,116.73 = 17,958.66 : x
  2. Step 2: Convert to fraction form
    60,078.48/90,116.73 = 17,958.66/x
  3. Step 3: Cross multiply
    60,078.48x = 90,116.73 × 17,958.66
  4. Step 4: Simplify right side
    60,078.48x = 1,618,375,714.38
  5. Step 5: Solve for x
    x = 1,618,375,714.38/60,078.48
  6. Step 6: Final answer
    x = 26,937.69

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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.