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Finding the Fourth Proportional to 70,049.99, 96,665.03 and 39,842.66

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Solution

The fourth proportional to 70,049.99, 96,665.03 and 39,842.66 is: 54,980.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,049.99 : 96,665.03 = 39,842.66 : x
  2. Step 2: Convert to fraction form
    70,049.99/96,665.03 = 39,842.66/x
  3. Step 3: Cross multiply
    70,049.99x = 96,665.03 × 39,842.66
  4. Step 4: Simplify right side
    70,049.99x = 3,851,392,116.04
  5. Step 5: Solve for x
    x = 3,851,392,116.04/70,049.99
  6. Step 6: Final answer
    x = 54,980.62

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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.