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Finding the Fourth Proportional to 40,329.20, 60,434.40 and 29,259.20

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Solution

The fourth proportional to 40,329.20, 60,434.40 and 29,259.20 is: 43,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,329.20 : 60,434.40 = 29,259.20 : x
  2. Step 2: Convert to fraction form
    40,329.20/60,434.40 = 29,259.20/x
  3. Step 3: Cross multiply
    40,329.20x = 60,434.40 × 29,259.20
  4. Step 4: Simplify right side
    40,329.20x = 1,768,262,196.48
  5. Step 5: Solve for x
    x = 1,768,262,196.48/40,329.20
  6. Step 6: Final answer
    x = 43,845.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.