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Finding the Fourth Proportional to 14,559.60, 21,839.40 and 5,324.40

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Solution

The fourth proportional to 14,559.60, 21,839.40 and 5,324.40 is: 7,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,559.60 : 21,839.40 = 5,324.40 : x
  2. Step 2: Convert to fraction form
    14,559.60/21,839.40 = 5,324.40/x
  3. Step 3: Cross multiply
    14,559.60x = 21,839.40 × 5,324.40
  4. Step 4: Simplify right side
    14,559.60x = 116,281,701.36
  5. Step 5: Solve for x
    x = 116,281,701.36/14,559.60
  6. Step 6: Final answer
    x = 7,986.60

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Similar ratio
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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.