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Finding the Fourth Proportional to 40,909.40, 61,364.10 and 33,619.40

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Solution

The fourth proportional to 40,909.40, 61,364.10 and 33,619.40 is: 50,429.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,909.40 : 61,364.10 = 33,619.40 : x
  2. Step 2: Convert to fraction form
    40,909.40/61,364.10 = 33,619.40/x
  3. Step 3: Cross multiply
    40,909.40x = 61,364.10 × 33,619.40
  4. Step 4: Simplify right side
    40,909.40x = 2,063,024,223.54
  5. Step 5: Solve for x
    x = 2,063,024,223.54/40,909.40
  6. Step 6: Final answer
    x = 50,429.10

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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.