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Finding the Fourth Proportional to 29,155.28, 40,227.44 and 17,220.40

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Solution

The fourth proportional to 29,155.28, 40,227.44 and 17,220.40 is: 23,760.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,155.28 : 40,227.44 = 17,220.40 : x
  2. Step 2: Convert to fraction form
    29,155.28/40,227.44 = 17,220.40/x
  3. Step 3: Cross multiply
    29,155.28x = 40,227.44 × 17,220.40
  4. Step 4: Simplify right side
    29,155.28x = 692,732,421.11
  5. Step 5: Solve for x
    x = 692,732,421.11/29,155.28
  6. Step 6: Final answer
    x = 23,760.11

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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.