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Finding the Fourth Proportional to 70,097.68, 96,736.98 and 39,887.38

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Solution

The fourth proportional to 70,097.68, 96,736.98 and 39,887.38 is: 55,045.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,097.68 : 96,736.98 = 39,887.38 : x
  2. Step 2: Convert to fraction form
    70,097.68/96,736.98 = 39,887.38/x
  3. Step 3: Cross multiply
    70,097.68x = 96,736.98 × 39,887.38
  4. Step 4: Simplify right side
    70,097.68x = 3,858,584,681.31
  5. Step 5: Solve for x
    x = 3,858,584,681.31/70,097.68
  6. Step 6: Final answer
    x = 55,045.83

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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.