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Finding the Fourth Proportional to 58,248, 87,349.80 and 20,801.08

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Solution

The fourth proportional to 58,248, 87,349.80 and 20,801.08 is: 31,193.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,248 : 87,349.80 = 20,801.08 : x
  2. Step 2: Convert to fraction form
    58,248/87,349.80 = 20,801.08/x
  3. Step 3: Cross multiply
    58,248x = 87,349.80 × 20,801.08
  4. Step 4: Simplify right side
    58,248x = 1,816,970,177.78
  5. Step 5: Solve for x
    x = 1,816,970,177.78/58,248
  6. Step 6: Final answer
    x = 31,193.69

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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.