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Finding the Fourth Proportional to 34,658.66, 51,987.98 and 13,608.62

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Solution

The fourth proportional to 34,658.66, 51,987.98 and 13,608.62 is: 20,412.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,658.66 : 51,987.98 = 13,608.62 : x
  2. Step 2: Convert to fraction form
    34,658.66/51,987.98 = 13,608.62/x
  3. Step 3: Cross multiply
    34,658.66x = 51,987.98 × 13,608.62
  4. Step 4: Simplify right side
    34,658.66x = 707,484,336.40
  5. Step 5: Solve for x
    x = 707,484,336.40/34,658.66
  6. Step 6: Final answer
    x = 20,412.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.