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Finding the Fourth Proportional to 70,661.92, 97,518.86 and 40,456.70

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Solution

The fourth proportional to 70,661.92, 97,518.86 and 40,456.70 is: 55,833.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,661.92 : 97,518.86 = 40,456.70 : x
  2. Step 2: Convert to fraction form
    70,661.92/97,518.86 = 40,456.70/x
  3. Step 3: Cross multiply
    70,661.92x = 97,518.86 × 40,456.70
  4. Step 4: Simplify right side
    70,661.92x = 3,945,291,263.36
  5. Step 5: Solve for x
    x = 3,945,291,263.36/70,661.92
  6. Step 6: Final answer
    x = 55,833.34

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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.