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Finding the Fourth Proportional to 64,023.52, 96,069.12 and 45,423.76

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Solution

The fourth proportional to 64,023.52, 96,069.12 and 45,423.76 is: 68,159.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,023.52 : 96,069.12 = 45,423.76 : x
  2. Step 2: Convert to fraction form
    64,023.52/96,069.12 = 45,423.76/x
  3. Step 3: Cross multiply
    64,023.52x = 96,069.12 × 45,423.76
  4. Step 4: Simplify right side
    64,023.52x = 4,363,820,650.29
  5. Step 5: Solve for x
    x = 4,363,820,650.29/64,023.52
  6. Step 6: Final answer
    x = 68,159.65

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1.5x scale

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.