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Finding the Fourth Proportional to 29,291.95, 40,426.92 and 17,959.45

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Solution

The fourth proportional to 29,291.95, 40,426.92 and 17,959.45 is: 24,786.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,291.95 : 40,426.92 = 17,959.45 : x
  2. Step 2: Convert to fraction form
    29,291.95/40,426.92 = 17,959.45/x
  3. Step 3: Cross multiply
    29,291.95x = 40,426.92 × 17,959.45
  4. Step 4: Simplify right side
    29,291.95x = 726,045,023.81
  5. Step 5: Solve for x
    x = 726,045,023.81/29,291.95
  6. Step 6: Final answer
    x = 24,786.50

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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.