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Finding the Fourth Proportional to 64,489.68, 88,995.66 and 36,195.30

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Solution

The fourth proportional to 64,489.68, 88,995.66 and 36,195.30 is: 49,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,489.68 : 88,995.66 = 36,195.30 : x
  2. Step 2: Convert to fraction form
    64,489.68/88,995.66 = 36,195.30/x
  3. Step 3: Cross multiply
    64,489.68x = 88,995.66 × 36,195.30
  4. Step 4: Simplify right side
    64,489.68x = 3,221,224,612.40
  5. Step 5: Solve for x
    x = 3,221,224,612.40/64,489.68
  6. Step 6: Final answer
    x = 49,949.46

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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.