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Finding the Fourth Proportional to 14,353.65, 21,521.66 and 5,578.34

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Solution

The fourth proportional to 14,353.65, 21,521.66 and 5,578.34 is: 8,364.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,353.65 : 21,521.66 = 5,578.34 : x
  2. Step 2: Convert to fraction form
    14,353.65/21,521.66 = 5,578.34/x
  3. Step 3: Cross multiply
    14,353.65x = 21,521.66 × 5,578.34
  4. Step 4: Simplify right side
    14,353.65x = 120,055,001.34
  5. Step 5: Solve for x
    x = 120,055,001.34/14,353.65
  6. Step 6: Final answer
    x = 8,364.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.