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Finding the Fourth Proportional to 70,049.68, 96,664.60 and 39,842.35

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Solution

The fourth proportional to 70,049.68, 96,664.60 and 39,842.35 is: 54,980.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,049.68 : 96,664.60 = 39,842.35 : x
  2. Step 2: Convert to fraction form
    70,049.68/96,664.60 = 39,842.35/x
  3. Step 3: Cross multiply
    70,049.68x = 96,664.60 × 39,842.35
  4. Step 4: Simplify right side
    70,049.68x = 3,851,344,726.20
  5. Step 5: Solve for x
    x = 3,851,344,726.20/70,049.68
  6. Step 6: Final answer
    x = 54,980.19

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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.