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Finding the Fourth Proportional to 58,172.96, 80,285.84 and 34,301.76

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Solution

The fourth proportional to 58,172.96, 80,285.84 and 34,301.76 is: 47,340.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,172.96 : 80,285.84 = 34,301.76 : x
  2. Step 2: Convert to fraction form
    58,172.96/80,285.84 = 34,301.76/x
  3. Step 3: Cross multiply
    58,172.96x = 80,285.84 × 34,301.76
  4. Step 4: Simplify right side
    58,172.96x = 2,753,945,615.08
  5. Step 5: Solve for x
    x = 2,753,945,615.08/58,172.96
  6. Step 6: Final answer
    x = 47,340.65

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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.