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Finding the Fourth Proportional to 12,218.28, 16,877.04 and 9,038.07

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Solution

The fourth proportional to 12,218.28, 16,877.04 and 9,038.07 is: 12,484.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.28 : 16,877.04 = 9,038.07 : x
  2. Step 2: Convert to fraction form
    12,218.28/16,877.04 = 9,038.07/x
  3. Step 3: Cross multiply
    12,218.28x = 16,877.04 × 9,038.07
  4. Step 4: Simplify right side
    12,218.28x = 152,535,868.91
  5. Step 5: Solve for x
    x = 152,535,868.91/12,218.28
  6. Step 6: Final answer
    x = 12,484.23

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