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Finding the Fourth Proportional to 14,795.18, 20,412.44 and 9,761.90

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Solution

The fourth proportional to 14,795.18, 20,412.44 and 9,761.90 is: 13,468.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,795.18 : 20,412.44 = 9,761.90 : x
  2. Step 2: Convert to fraction form
    14,795.18/20,412.44 = 9,761.90/x
  3. Step 3: Cross multiply
    14,795.18x = 20,412.44 × 9,761.90
  4. Step 4: Simplify right side
    14,795.18x = 199,264,198.04
  5. Step 5: Solve for x
    x = 199,264,198.04/14,795.18
  6. Step 6: Final answer
    x = 13,468.18

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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.