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Finding the Fourth Proportional to 58,681.92, 80,978.76 and 33,189.60

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Solution

The fourth proportional to 58,681.92, 80,978.76 and 33,189.60 is: 45,800.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,681.92 : 80,978.76 = 33,189.60 : x
  2. Step 2: Convert to fraction form
    58,681.92/80,978.76 = 33,189.60/x
  3. Step 3: Cross multiply
    58,681.92x = 80,978.76 × 33,189.60
  4. Step 4: Simplify right side
    58,681.92x = 2,687,652,652.90
  5. Step 5: Solve for x
    x = 2,687,652,652.90/58,681.92
  6. Step 6: Final answer
    x = 45,800.35

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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.