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Finding the Fourth Proportional to 29,695.50, 40,980.45 and 16,948.42

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Solution

The fourth proportional to 29,695.50, 40,980.45 and 16,948.42 is: 23,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,695.50 : 40,980.45 = 16,948.42 : x
  2. Step 2: Convert to fraction form
    29,695.50/40,980.45 = 16,948.42/x
  3. Step 3: Cross multiply
    29,695.50x = 40,980.45 × 16,948.42
  4. Step 4: Simplify right side
    29,695.50x = 694,553,793.65
  5. Step 5: Solve for x
    x = 694,553,793.65/29,695.50
  6. Step 6: Final answer
    x = 23,389.20

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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.