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Finding the Fourth Proportional to 28,304.65, 42,456.81 and 7,244.65

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Solution

The fourth proportional to 28,304.65, 42,456.81 and 7,244.65 is: 10,866.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,304.65 : 42,456.81 = 7,244.65 : x
  2. Step 2: Convert to fraction form
    28,304.65/42,456.81 = 7,244.65/x
  3. Step 3: Cross multiply
    28,304.65x = 42,456.81 × 7,244.65
  4. Step 4: Simplify right side
    28,304.65x = 307,584,728.57
  5. Step 5: Solve for x
    x = 307,584,728.57/28,304.65
  6. Step 6: Final answer
    x = 10,866.93

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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.