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Finding the Fourth Proportional to 69,780.79, 96,296.43 and 37,948.96

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Solution

The fourth proportional to 69,780.79, 96,296.43 and 37,948.96 is: 52,368.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,780.79 : 96,296.43 = 37,948.96 : x
  2. Step 2: Convert to fraction form
    69,780.79/96,296.43 = 37,948.96/x
  3. Step 3: Cross multiply
    69,780.79x = 96,296.43 × 37,948.96
  4. Step 4: Simplify right side
    69,780.79x = 3,654,349,370.21
  5. Step 5: Solve for x
    x = 3,654,349,370.21/69,780.79
  6. Step 6: Final answer
    x = 52,368.99

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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.