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Finding the Fourth Proportional to 61,848.46, 85,350.90 and 34,990.42

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Solution

The fourth proportional to 61,848.46, 85,350.90 and 34,990.42 is: 48,286.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,848.46 : 85,350.90 = 34,990.42 : x
  2. Step 2: Convert to fraction form
    61,848.46/85,350.90 = 34,990.42/x
  3. Step 3: Cross multiply
    61,848.46x = 85,350.90 × 34,990.42
  4. Step 4: Simplify right side
    61,848.46x = 2,986,463,838.38
  5. Step 5: Solve for x
    x = 2,986,463,838.38/61,848.46
  6. Step 6: Final answer
    x = 48,286.79

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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.