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Finding the Fourth Proportional to 70,727.88, 97,606.98 and 38,899.24

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Solution

The fourth proportional to 70,727.88, 97,606.98 and 38,899.24 is: 53,682.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,727.88 : 97,606.98 = 38,899.24 : x
  2. Step 2: Convert to fraction form
    70,727.88/97,606.98 = 38,899.24/x
  3. Step 3: Cross multiply
    70,727.88x = 97,606.98 × 38,899.24
  4. Step 4: Simplify right side
    70,727.88x = 3,796,837,340.70
  5. Step 5: Solve for x
    x = 3,796,837,340.70/70,727.88
  6. Step 6: Final answer
    x = 53,682.33

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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.