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Finding the Fourth Proportional to 58,842.55, 81,221.30 and 37,621.90

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Solution

The fourth proportional to 58,842.55, 81,221.30 and 37,621.90 is: 51,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,842.55 : 81,221.30 = 37,621.90 : x
  2. Step 2: Convert to fraction form
    58,842.55/81,221.30 = 37,621.90/x
  3. Step 3: Cross multiply
    58,842.55x = 81,221.30 × 37,621.90
  4. Step 4: Simplify right side
    58,842.55x = 3,055,699,626.47
  5. Step 5: Solve for x
    x = 3,055,699,626.47/58,842.55
  6. Step 6: Final answer
    x = 51,930.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.