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Finding the Fourth Proportional to 69,578.61, 96,012.14 and 39,366.69

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Solution

The fourth proportional to 69,578.61, 96,012.14 and 39,366.69 is: 54,322.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,578.61 : 96,012.14 = 39,366.69 : x
  2. Step 2: Convert to fraction form
    69,578.61/96,012.14 = 39,366.69/x
  3. Step 3: Cross multiply
    69,578.61x = 96,012.14 × 39,366.69
  4. Step 4: Simplify right side
    69,578.61x = 3,779,679,954.78
  5. Step 5: Solve for x
    x = 3,779,679,954.78/69,578.61
  6. Step 6: Final answer
    x = 54,322.44

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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.