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Finding the Fourth Proportional to 29,687.59, 40,949.17 and 19,090.63

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Solution

The fourth proportional to 29,687.59, 40,949.17 and 19,090.63 is: 26,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,687.59 : 40,949.17 = 19,090.63 : x
  2. Step 2: Convert to fraction form
    29,687.59/40,949.17 = 19,090.63/x
  3. Step 3: Cross multiply
    29,687.59x = 40,949.17 × 19,090.63
  4. Step 4: Simplify right side
    29,687.59x = 781,745,453.28
  5. Step 5: Solve for x
    x = 781,745,453.28/29,687.59
  6. Step 6: Final answer
    x = 26,332.40

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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.