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Finding the Fourth Proportional to 49,407.84, 68,289.48 and 43,702.20

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Solution

The fourth proportional to 49,407.84, 68,289.48 and 43,702.20 is: 60,403.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,407.84 : 68,289.48 = 43,702.20 : x
  2. Step 2: Convert to fraction form
    49,407.84/68,289.48 = 43,702.20/x
  3. Step 3: Cross multiply
    49,407.84x = 68,289.48 × 43,702.20
  4. Step 4: Simplify right side
    49,407.84x = 2,984,400,512.86
  5. Step 5: Solve for x
    x = 2,984,400,512.86/49,407.84
  6. Step 6: Final answer
    x = 60,403.38

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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.