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Finding the Fourth Proportional to 72,970.26, 100,693.90 and 41,132.40

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Solution

The fourth proportional to 72,970.26, 100,693.90 and 41,132.40 is: 56,759.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,970.26 : 100,693.90 = 41,132.40 : x
  2. Step 2: Convert to fraction form
    72,970.26/100,693.90 = 41,132.40/x
  3. Step 3: Cross multiply
    72,970.26x = 100,693.90 × 41,132.40
  4. Step 4: Simplify right side
    72,970.26x = 4,141,781,772.36
  5. Step 5: Solve for x
    x = 4,141,781,772.36/72,970.26
  6. Step 6: Final answer
    x = 56,759.86

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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.