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Finding the Fourth Proportional to 43,801.70, 65,702.55 and 43,340.90

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Solution

The fourth proportional to 43,801.70, 65,702.55 and 43,340.90 is: 65,011.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,801.70 : 65,702.55 = 43,340.90 : x
  2. Step 2: Convert to fraction form
    43,801.70/65,702.55 = 43,340.90/x
  3. Step 3: Cross multiply
    43,801.70x = 65,702.55 × 43,340.90
  4. Step 4: Simplify right side
    43,801.70x = 2,847,607,649.30
  5. Step 5: Solve for x
    x = 2,847,607,649.30/43,801.70
  6. Step 6: Final answer
    x = 65,011.35

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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.