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Finding the Fourth Proportional to 22,061.84, 30,433.93 and 13,663.76

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Solution

The fourth proportional to 22,061.84, 30,433.93 and 13,663.76 is: 18,848.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,061.84 : 30,433.93 = 13,663.76 : x
  2. Step 2: Convert to fraction form
    22,061.84/30,433.93 = 13,663.76/x
  3. Step 3: Cross multiply
    22,061.84x = 30,433.93 × 13,663.76
  4. Step 4: Simplify right side
    22,061.84x = 415,841,729.05
  5. Step 5: Solve for x
    x = 415,841,729.05/22,061.84
  6. Step 6: Final answer
    x = 18,848.92

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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.