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Finding the Fourth Proportional to 29,695.81, 40,980.87 and 16,948.73

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Solution

The fourth proportional to 29,695.81, 40,980.87 and 16,948.73 is: 23,389.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,695.81 : 40,980.87 = 16,948.73 : x
  2. Step 2: Convert to fraction form
    29,695.81/40,980.87 = 16,948.73/x
  3. Step 3: Cross multiply
    29,695.81x = 40,980.87 × 16,948.73
  4. Step 4: Simplify right side
    29,695.81x = 694,573,700.80
  5. Step 5: Solve for x
    x = 694,573,700.80/29,695.81
  6. Step 6: Final answer
    x = 23,389.62

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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.