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Finding the Fourth Proportional to 40,274.56, 55,603.56 and 29,645.20

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Solution

The fourth proportional to 40,274.56, 55,603.56 and 29,645.20 is: 40,928.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,274.56 : 55,603.56 = 29,645.20 : x
  2. Step 2: Convert to fraction form
    40,274.56/55,603.56 = 29,645.20/x
  3. Step 3: Cross multiply
    40,274.56x = 55,603.56 × 29,645.20
  4. Step 4: Simplify right side
    40,274.56x = 1,648,378,656.91
  5. Step 5: Solve for x
    x = 1,648,378,656.91/40,274.56
  6. Step 6: Final answer
    x = 40,928.53

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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.