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Finding the Fourth Proportional to 44,339.40, 66,509.10 and 42,419.70

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Solution

The fourth proportional to 44,339.40, 66,509.10 and 42,419.70 is: 63,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,339.40 : 66,509.10 = 42,419.70 : x
  2. Step 2: Convert to fraction form
    44,339.40/66,509.10 = 42,419.70/x
  3. Step 3: Cross multiply
    44,339.40x = 66,509.10 × 42,419.70
  4. Step 4: Simplify right side
    44,339.40x = 2,821,296,069.27
  5. Step 5: Solve for x
    x = 2,821,296,069.27/44,339.40
  6. Step 6: Final answer
    x = 63,629.55

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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.