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Finding the Fourth Proportional to 14,363.76, 21,565.82 and 7,348.81

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Solution

The fourth proportional to 14,363.76, 21,565.82 and 7,348.81 is: 11,033.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,363.76 : 21,565.82 = 7,348.81 : x
  2. Step 2: Convert to fraction form
    14,363.76/21,565.82 = 7,348.81/x
  3. Step 3: Cross multiply
    14,363.76x = 21,565.82 × 7,348.81
  4. Step 4: Simplify right side
    14,363.76x = 158,483,078.13
  5. Step 5: Solve for x
    x = 158,483,078.13/14,363.76
  6. Step 6: Final answer
    x = 11,033.54

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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.