Home / 69,854.18-96,396.09-39,637.70

Finding the Fourth Proportional to 69,854.18, 96,396.09 and 39,637.70

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Solution

The fourth proportional to 69,854.18, 96,396.09 and 39,637.70 is: 54,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,854.18 : 96,396.09 = 39,637.70 : x
  2. Step 2: Convert to fraction form
    69,854.18/96,396.09 = 39,637.70/x
  3. Step 3: Cross multiply
    69,854.18x = 96,396.09 × 39,637.70
  4. Step 4: Simplify right side
    69,854.18x = 3,820,919,537.58
  5. Step 5: Solve for x
    x = 3,820,919,537.58/69,854.18
  6. Step 6: Final answer
    x = 54,698.51

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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.