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Finding the Fourth Proportional to 62,867.42, 86,755.76 and 34,187.65

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Solution

The fourth proportional to 62,867.42, 86,755.76 and 34,187.65 is: 47,178.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,867.42 : 86,755.76 = 34,187.65 : x
  2. Step 2: Convert to fraction form
    62,867.42/86,755.76 = 34,187.65/x
  3. Step 3: Cross multiply
    62,867.42x = 86,755.76 × 34,187.65
  4. Step 4: Simplify right side
    62,867.42x = 2,965,975,298.74
  5. Step 5: Solve for x
    x = 2,965,975,298.74/62,867.42
  6. Step 6: Final answer
    x = 47,178.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.