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Finding the Fourth Proportional to 14,159.15, 21,241.70 and 5,839.10

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Solution

The fourth proportional to 14,159.15, 21,241.70 and 5,839.10 is: 8,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,159.15 : 21,241.70 = 5,839.10 : x
  2. Step 2: Convert to fraction form
    14,159.15/21,241.70 = 5,839.10/x
  3. Step 3: Cross multiply
    14,159.15x = 21,241.70 × 5,839.10
  4. Step 4: Simplify right side
    14,159.15x = 124,032,275.07
  5. Step 5: Solve for x
    x = 124,032,275.07/14,159.15
  6. Step 6: Final answer
    x = 8,759.87

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1.5x scale

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.