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Finding the Fourth Proportional to 69,018.28, 95,251.74 and 38,811.16

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Solution

The fourth proportional to 69,018.28, 95,251.74 and 38,811.16 is: 53,563.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,018.28 : 95,251.74 = 38,811.16 : x
  2. Step 2: Convert to fraction form
    69,018.28/95,251.74 = 38,811.16/x
  3. Step 3: Cross multiply
    69,018.28x = 95,251.74 × 38,811.16
  4. Step 4: Simplify right side
    69,018.28x = 3,696,830,521.42
  5. Step 5: Solve for x
    x = 3,696,830,521.42/69,018.28
  6. Step 6: Final answer
    x = 53,563.06

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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.