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Finding the Fourth Proportional to 58,590.87, 87,890.88 and 19,151.97

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Solution

The fourth proportional to 58,590.87, 87,890.88 and 19,151.97 is: 28,729.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,590.87 : 87,890.88 = 19,151.97 : x
  2. Step 2: Convert to fraction form
    58,590.87/87,890.88 = 19,151.97/x
  3. Step 3: Cross multiply
    58,590.87x = 87,890.88 × 19,151.97
  4. Step 4: Simplify right side
    58,590.87x = 1,683,283,497.03
  5. Step 5: Solve for x
    x = 1,683,283,497.03/58,590.87
  6. Step 6: Final answer
    x = 28,729.45

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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.