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Finding the Fourth Proportional to 69,712.56, 96,187.80 and 39,495.24

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Solution

The fourth proportional to 69,712.56, 96,187.80 and 39,495.24 is: 54,494.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,712.56 : 96,187.80 = 39,495.24 : x
  2. Step 2: Convert to fraction form
    69,712.56/96,187.80 = 39,495.24/x
  3. Step 3: Cross multiply
    69,712.56x = 96,187.80 × 39,495.24
  4. Step 4: Simplify right side
    69,712.56x = 3,798,960,246.07
  5. Step 5: Solve for x
    x = 3,798,960,246.07/69,712.56
  6. Step 6: Final answer
    x = 54,494.63

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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.