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Finding the Fourth Proportional to 22,487.29, 31,032.28 and 12,415.75

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Solution

The fourth proportional to 22,487.29, 31,032.28 and 12,415.75 is: 17,133.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,487.29 : 31,032.28 = 12,415.75 : x
  2. Step 2: Convert to fraction form
    22,487.29/31,032.28 = 12,415.75/x
  3. Step 3: Cross multiply
    22,487.29x = 31,032.28 × 12,415.75
  4. Step 4: Simplify right side
    22,487.29x = 385,289,030.41
  5. Step 5: Solve for x
    x = 385,289,030.41/22,487.29
  6. Step 6: Final answer
    x = 17,133.64

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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.