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Finding the Fourth Proportional to 69,896.78, 96,454.20 and 38,065.48

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Solution

The fourth proportional to 69,896.78, 96,454.20 and 38,065.48 is: 52,528.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,896.78 : 96,454.20 = 38,065.48 : x
  2. Step 2: Convert to fraction form
    69,896.78/96,454.20 = 38,065.48/x
  3. Step 3: Cross multiply
    69,896.78x = 96,454.20 × 38,065.48
  4. Step 4: Simplify right side
    69,896.78x = 3,671,575,421.02
  5. Step 5: Solve for x
    x = 3,671,575,421.02/69,896.78
  6. Step 6: Final answer
    x = 52,528.53

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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.