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Finding the Fourth Proportional to 69,855.04, 96,385.66 and 67,454.72

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Solution

The fourth proportional to 69,855.04, 96,385.66 and 67,454.72 is: 93,073.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,855.04 : 96,385.66 = 67,454.72 : x
  2. Step 2: Convert to fraction form
    69,855.04/96,385.66 = 67,454.72/x
  3. Step 3: Cross multiply
    69,855.04x = 96,385.66 × 67,454.72
  4. Step 4: Simplify right side
    69,855.04x = 6,501,667,707.32
  5. Step 5: Solve for x
    x = 6,501,667,707.32/69,855.04
  6. Step 6: Final answer
    x = 93,073.71

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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.