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Finding the Fourth Proportional to 70,216.91, 96,899.15 and 40,002.29

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Solution

The fourth proportional to 70,216.91, 96,899.15 and 40,002.29 is: 55,203.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,216.91 : 96,899.15 = 40,002.29 : x
  2. Step 2: Convert to fraction form
    70,216.91/96,899.15 = 40,002.29/x
  3. Step 3: Cross multiply
    70,216.91x = 96,899.15 × 40,002.29
  4. Step 4: Simplify right side
    70,216.91x = 3,876,187,899.05
  5. Step 5: Solve for x
    x = 3,876,187,899.05/70,216.91
  6. Step 6: Final answer
    x = 55,203.05

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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.