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Finding the Fourth Proportional to 69,701.56, 96,188.37 and 39,492.47

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Solution

The fourth proportional to 69,701.56, 96,188.37 and 39,492.47 is: 54,499.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,701.56 : 96,188.37 = 39,492.47 : x
  2. Step 2: Convert to fraction form
    69,701.56/96,188.37 = 39,492.47/x
  3. Step 3: Cross multiply
    69,701.56x = 96,188.37 × 39,492.47
  4. Step 4: Simplify right side
    69,701.56x = 3,798,716,316.57
  5. Step 5: Solve for x
    x = 3,798,716,316.57/69,701.56
  6. Step 6: Final answer
    x = 54,499.73

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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.