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Finding the Fourth Proportional to 56,987.69, 85,481.57 and 14,867.71

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Solution

The fourth proportional to 56,987.69, 85,481.57 and 14,867.71 is: 22,301.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,987.69 : 85,481.57 = 14,867.71 : x
  2. Step 2: Convert to fraction form
    56,987.69/85,481.57 = 14,867.71/x
  3. Step 3: Cross multiply
    56,987.69x = 85,481.57 × 14,867.71
  4. Step 4: Simplify right side
    56,987.69x = 1,270,915,016.57
  5. Step 5: Solve for x
    x = 1,270,915,016.57/56,987.69
  6. Step 6: Final answer
    x = 22,301.57

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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.