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Finding the Fourth Proportional to 29,393.76, 40,563.81 and 15,965.04

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Solution

The fourth proportional to 29,393.76, 40,563.81 and 15,965.04 is: 22,031.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,393.76 : 40,563.81 = 15,965.04 : x
  2. Step 2: Convert to fraction form
    29,393.76/40,563.81 = 15,965.04/x
  3. Step 3: Cross multiply
    29,393.76x = 40,563.81 × 15,965.04
  4. Step 4: Simplify right side
    29,393.76x = 647,602,849.20
  5. Step 5: Solve for x
    x = 647,602,849.20/29,393.76
  6. Step 6: Final answer
    x = 22,031.98

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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.