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Finding the Fourth Proportional to 14,447.10, 21,655.05 and 7,035.18

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Solution

The fourth proportional to 14,447.10, 21,655.05 and 7,035.18 is: 10,545.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,447.10 : 21,655.05 = 7,035.18 : x
  2. Step 2: Convert to fraction form
    14,447.10/21,655.05 = 7,035.18/x
  3. Step 3: Cross multiply
    14,447.10x = 21,655.05 × 7,035.18
  4. Step 4: Simplify right side
    14,447.10x = 152,347,174.66
  5. Step 5: Solve for x
    x = 152,347,174.66/14,447.10
  6. Step 6: Final answer
    x = 10,545.17

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Why These Related Problems?

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