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Finding the Fourth Proportional to 70,218.92, 96,890.91 and 40,004.84

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Solution

The fourth proportional to 70,218.92, 96,890.91 and 40,004.84 is: 55,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,218.92 : 96,890.91 = 40,004.84 : x
  2. Step 2: Convert to fraction form
    70,218.92/96,890.91 = 40,004.84/x
  3. Step 3: Cross multiply
    70,218.92x = 96,890.91 × 40,004.84
  4. Step 4: Simplify right side
    70,218.92x = 3,876,105,352.00
  5. Step 5: Solve for x
    x = 3,876,105,352.00/70,218.92
  6. Step 6: Final answer
    x = 55,200.30

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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.