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Finding the Fourth Proportional to 58,615.85, 87,860.23 and 28,595.90

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Solution

The fourth proportional to 58,615.85, 87,860.23 and 28,595.90 is: 42,862.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,615.85 : 87,860.23 = 28,595.90 : x
  2. Step 2: Convert to fraction form
    58,615.85/87,860.23 = 28,595.90/x
  3. Step 3: Cross multiply
    58,615.85x = 87,860.23 × 28,595.90
  4. Step 4: Simplify right side
    58,615.85x = 2,512,442,499.22
  5. Step 5: Solve for x
    x = 2,512,442,499.22/58,615.85
  6. Step 6: Final answer
    x = 42,862.85

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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.