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Finding the Fourth Proportional to 58,340.33, 87,515.10 and 28,742.02

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Solution

The fourth proportional to 58,340.33, 87,515.10 and 28,742.02 is: 43,115.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,340.33 : 87,515.10 = 28,742.02 : x
  2. Step 2: Convert to fraction form
    58,340.33/87,515.10 = 28,742.02/x
  3. Step 3: Cross multiply
    58,340.33x = 87,515.10 × 28,742.02
  4. Step 4: Simplify right side
    58,340.33x = 2,515,360,754.50
  5. Step 5: Solve for x
    x = 2,515,360,754.50/58,340.33
  6. Step 6: Final answer
    x = 43,115.30

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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.