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Finding the Fourth Proportional to 72,467.48, 99,959.10 and 52,353.92

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Solution

The fourth proportional to 72,467.48, 99,959.10 and 52,353.92 is: 72,215.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,467.48 : 99,959.10 = 52,353.92 : x
  2. Step 2: Convert to fraction form
    72,467.48/99,959.10 = 52,353.92/x
  3. Step 3: Cross multiply
    72,467.48x = 99,959.10 × 52,353.92
  4. Step 4: Simplify right side
    72,467.48x = 5,233,250,724.67
  5. Step 5: Solve for x
    x = 5,233,250,724.67/72,467.48
  6. Step 6: Final answer
    x = 72,215.16

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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.