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Finding the Fourth Proportional to 70,151.60, 96,811.56 and 38,323.46

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Solution

The fourth proportional to 70,151.60, 96,811.56 and 38,323.46 is: 52,887.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,151.60 : 96,811.56 = 38,323.46 : x
  2. Step 2: Convert to fraction form
    70,151.60/96,811.56 = 38,323.46/x
  3. Step 3: Cross multiply
    70,151.60x = 96,811.56 × 38,323.46
  4. Step 4: Simplify right side
    70,151.60x = 3,710,153,947.20
  5. Step 5: Solve for x
    x = 3,710,153,947.20/70,151.60
  6. Step 6: Final answer
    x = 52,887.66

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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.