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Finding the Fourth Proportional to 34,613.70, 47,766.88 and 18,698.15

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Solution

The fourth proportional to 34,613.70, 47,766.88 and 18,698.15 is: 25,803.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,613.70 : 47,766.88 = 18,698.15 : x
  2. Step 2: Convert to fraction form
    34,613.70/47,766.88 = 18,698.15/x
  3. Step 3: Cross multiply
    34,613.70x = 47,766.88 × 18,698.15
  4. Step 4: Simplify right side
    34,613.70x = 893,152,001.69
  5. Step 5: Solve for x
    x = 893,152,001.69/34,613.70
  6. Step 6: Final answer
    x = 25,803.42

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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.