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Finding the Fourth Proportional to 14,363.12, 19,821.51 and 8,395.04

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Solution

The fourth proportional to 14,363.12, 19,821.51 and 8,395.04 is: 11,585.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,363.12 : 19,821.51 = 8,395.04 : x
  2. Step 2: Convert to fraction form
    14,363.12/19,821.51 = 8,395.04/x
  3. Step 3: Cross multiply
    14,363.12x = 19,821.51 × 8,395.04
  4. Step 4: Simplify right side
    14,363.12x = 166,402,418.86
  5. Step 5: Solve for x
    x = 166,402,418.86/14,363.12
  6. Step 6: Final answer
    x = 11,585.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.