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Finding the Fourth Proportional to 14,294.70, 19,720.02 and 9,260.55

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Solution

The fourth proportional to 14,294.70, 19,720.02 and 9,260.55 is: 12,775.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,294.70 : 19,720.02 = 9,260.55 : x
  2. Step 2: Convert to fraction form
    14,294.70/19,720.02 = 9,260.55/x
  3. Step 3: Cross multiply
    14,294.70x = 19,720.02 × 9,260.55
  4. Step 4: Simplify right side
    14,294.70x = 182,618,231.21
  5. Step 5: Solve for x
    x = 182,618,231.21/14,294.70
  6. Step 6: Final answer
    x = 12,775.24

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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.