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Finding the Fourth Proportional to 15,378.66, 23,046.66 and 8,790.93

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Solution

The fourth proportional to 15,378.66, 23,046.66 and 8,790.93 is: 13,174.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,378.66 : 23,046.66 = 8,790.93 : x
  2. Step 2: Convert to fraction form
    15,378.66/23,046.66 = 8,790.93/x
  3. Step 3: Cross multiply
    15,378.66x = 23,046.66 × 8,790.93
  4. Step 4: Simplify right side
    15,378.66x = 202,601,574.79
  5. Step 5: Solve for x
    x = 202,601,574.79/15,378.66
  6. Step 6: Final answer
    x = 13,174.20

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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.