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Finding the Fourth Proportional to 38,583.65, 57,879.63 and 12,282.24

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Solution

The fourth proportional to 38,583.65, 57,879.63 and 12,282.24 is: 18,424.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,583.65 : 57,879.63 = 12,282.24 : x
  2. Step 2: Convert to fraction form
    38,583.65/57,879.63 = 12,282.24/x
  3. Step 3: Cross multiply
    38,583.65x = 57,879.63 × 12,282.24
  4. Step 4: Simplify right side
    38,583.65x = 710,891,506.77
  5. Step 5: Solve for x
    x = 710,891,506.77/38,583.65
  6. Step 6: Final answer
    x = 18,424.68

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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.