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Finding the Fourth Proportional to 29,695.31, 40,980.19 and 16,948.23

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Solution

The fourth proportional to 29,695.31, 40,980.19 and 16,948.23 is: 23,388.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,695.31 : 40,980.19 = 16,948.23 : x
  2. Step 2: Convert to fraction form
    29,695.31/40,980.19 = 16,948.23/x
  3. Step 3: Cross multiply
    29,695.31x = 40,980.19 × 16,948.23
  4. Step 4: Simplify right side
    29,695.31x = 694,541,600.82
  5. Step 5: Solve for x
    x = 694,541,600.82/29,695.31
  6. Step 6: Final answer
    x = 23,388.94

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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.