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Finding the Fourth Proportional to 9,382.66, 12,948.12 and 5,133.77

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Solution

The fourth proportional to 9,382.66, 12,948.12 and 5,133.77 is: 7,084.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,382.66 : 12,948.12 = 5,133.77 : x
  2. Step 2: Convert to fraction form
    9,382.66/12,948.12 = 5,133.77/x
  3. Step 3: Cross multiply
    9,382.66x = 12,948.12 × 5,133.77
  4. Step 4: Simplify right side
    9,382.66x = 66,472,670.01
  5. Step 5: Solve for x
    x = 66,472,670.01/9,382.66
  6. Step 6: Final answer
    x = 7,084.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.