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Finding the Fourth Proportional to 100,425.65, 150,639.33 and 25,545.86

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Solution

The fourth proportional to 100,425.65, 150,639.33 and 25,545.86 is: 38,319.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,425.65 : 150,639.33 = 25,545.86 : x
  2. Step 2: Convert to fraction form
    100,425.65/150,639.33 = 25,545.86/x
  3. Step 3: Cross multiply
    100,425.65x = 150,639.33 × 25,545.86
  4. Step 4: Simplify right side
    100,425.65x = 3,848,211,675.14
  5. Step 5: Solve for x
    x = 3,848,211,675.14/100,425.65
  6. Step 6: Final answer
    x = 38,319.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.