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Finding the Fourth Proportional to 69,569.39, 96,005.78 and 39,354.06

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Solution

The fourth proportional to 69,569.39, 96,005.78 and 39,354.06 is: 54,308.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,569.39 : 96,005.78 = 39,354.06 : x
  2. Step 2: Convert to fraction form
    69,569.39/96,005.78 = 39,354.06/x
  3. Step 3: Cross multiply
    69,569.39x = 96,005.78 × 39,354.06
  4. Step 4: Simplify right side
    69,569.39x = 3,778,217,758.66
  5. Step 5: Solve for x
    x = 3,778,217,758.66/69,569.39
  6. Step 6: Final answer
    x = 54,308.63

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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.