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Finding the Fourth Proportional to 58,613.51, 87,920.27 and 38,930.51

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Solution

The fourth proportional to 58,613.51, 87,920.27 and 38,930.51 is: 58,395.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,613.51 : 87,920.27 = 38,930.51 : x
  2. Step 2: Convert to fraction form
    58,613.51/87,920.27 = 38,930.51/x
  3. Step 3: Cross multiply
    58,613.51x = 87,920.27 × 38,930.51
  4. Step 4: Simplify right side
    58,613.51x = 3,422,780,316.18
  5. Step 5: Solve for x
    x = 3,422,780,316.18/58,613.51
  6. Step 6: Final answer
    x = 58,395.76

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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.