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Finding the Fourth Proportional to 69,681.70, 96,107.77 and 48,207.19

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Solution

The fourth proportional to 69,681.70, 96,107.77 and 48,207.19 is: 66,489.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,681.70 : 96,107.77 = 48,207.19 : x
  2. Step 2: Convert to fraction form
    69,681.70/96,107.77 = 48,207.19/x
  3. Step 3: Cross multiply
    69,681.70x = 96,107.77 × 48,207.19
  4. Step 4: Simplify right side
    69,681.70x = 4,633,085,528.87
  5. Step 5: Solve for x
    x = 4,633,085,528.87/69,681.70
  6. Step 6: Final answer
    x = 66,489.27

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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.