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Finding the Fourth Proportional to 61,613.62, 85,035.56 and 34,758.61

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Solution

The fourth proportional to 61,613.62, 85,035.56 and 34,758.61 is: 47,971.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,613.62 : 85,035.56 = 34,758.61 : x
  2. Step 2: Convert to fraction form
    61,613.62/85,035.56 = 34,758.61/x
  3. Step 3: Cross multiply
    61,613.62x = 85,035.56 × 34,758.61
  4. Step 4: Simplify right side
    61,613.62x = 2,955,717,479.79
  5. Step 5: Solve for x
    x = 2,955,717,479.79/61,613.62
  6. Step 6: Final answer
    x = 47,971.82

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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.