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Finding the Fourth Proportional to 58,488.39, 87,739.88 and 19,034.91

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Solution

The fourth proportional to 58,488.39, 87,739.88 and 19,034.91 is: 28,554.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,488.39 : 87,739.88 = 19,034.91 : x
  2. Step 2: Convert to fraction form
    58,488.39/87,739.88 = 19,034.91/x
  3. Step 3: Cross multiply
    58,488.39x = 87,739.88 × 19,034.91
  4. Step 4: Simplify right side
    58,488.39x = 1,670,120,624.04
  5. Step 5: Solve for x
    x = 1,670,120,624.04/58,488.39
  6. Step 6: Final answer
    x = 28,554.74

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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.