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Finding the Fourth Proportional to 64,489.59, 96,080.62 and 61,313.48

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Solution

The fourth proportional to 64,489.59, 96,080.62 and 61,313.48 is: 91,348.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,489.59 : 96,080.62 = 61,313.48 : x
  2. Step 2: Convert to fraction form
    64,489.59/96,080.62 = 61,313.48/x
  3. Step 3: Cross multiply
    64,489.59x = 96,080.62 × 61,313.48
  4. Step 4: Simplify right side
    64,489.59x = 5,891,037,172.76
  5. Step 5: Solve for x
    x = 5,891,037,172.76/64,489.59
  6. Step 6: Final answer
    x = 91,348.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.