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Finding the Fourth Proportional to 12,041.52, 18,032.88 and 8,333.28

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Solution

The fourth proportional to 12,041.52, 18,032.88 and 8,333.28 is: 12,479.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,041.52 : 18,032.88 = 8,333.28 : x
  2. Step 2: Convert to fraction form
    12,041.52/18,032.88 = 8,333.28/x
  3. Step 3: Cross multiply
    12,041.52x = 18,032.88 × 8,333.28
  4. Step 4: Simplify right side
    12,041.52x = 150,273,038.25
  5. Step 5: Solve for x
    x = 150,273,038.25/12,041.52
  6. Step 6: Final answer
    x = 12,479.57

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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.