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Finding the Fourth Proportional to 69,143.16, 95,418.88 and 40,848.84

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Solution

The fourth proportional to 69,143.16, 95,418.88 and 40,848.84 is: 56,372.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,143.16 : 95,418.88 = 40,848.84 : x
  2. Step 2: Convert to fraction form
    69,143.16/95,418.88 = 40,848.84/x
  3. Step 3: Cross multiply
    69,143.16x = 95,418.88 × 40,848.84
  4. Step 4: Simplify right side
    69,143.16x = 3,897,750,562.10
  5. Step 5: Solve for x
    x = 3,897,750,562.10/69,143.16
  6. Step 6: Final answer
    x = 56,372.18

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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.