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Finding the Fourth Proportional to 57,219.92, 78,962.28 and 32,068.88

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Solution

The fourth proportional to 57,219.92, 78,962.28 and 32,068.88 is: 44,254.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,219.92 : 78,962.28 = 32,068.88 : x
  2. Step 2: Convert to fraction form
    57,219.92/78,962.28 = 32,068.88/x
  3. Step 3: Cross multiply
    57,219.92x = 78,962.28 × 32,068.88
  4. Step 4: Simplify right side
    57,219.92x = 2,532,231,881.85
  5. Step 5: Solve for x
    x = 2,532,231,881.85/57,219.92
  6. Step 6: Final answer
    x = 44,254.38

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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.