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Finding the Fourth Proportional to 71,521.16, 98,714.88 and 55,967.99

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Solution

The fourth proportional to 71,521.16, 98,714.88 and 55,967.99 is: 77,248.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,521.16 : 98,714.88 = 55,967.99 : x
  2. Step 2: Convert to fraction form
    71,521.16/98,714.88 = 55,967.99/x
  3. Step 3: Cross multiply
    71,521.16x = 98,714.88 × 55,967.99
  4. Step 4: Simplify right side
    71,521.16x = 5,524,872,923.12
  5. Step 5: Solve for x
    x = 5,524,872,923.12/71,521.16
  6. Step 6: Final answer
    x = 77,248.09

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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.