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Finding the Fourth Proportional to 25,515, 38,253.06 and 17,197.11

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Solution

The fourth proportional to 25,515, 38,253.06 and 17,197.11 is: 25,782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,515 : 38,253.06 = 17,197.11 : x
  2. Step 2: Convert to fraction form
    25,515/38,253.06 = 17,197.11/x
  3. Step 3: Cross multiply
    25,515x = 38,253.06 × 17,197.11
  4. Step 4: Simplify right side
    25,515x = 657,842,080.66
  5. Step 5: Solve for x
    x = 657,842,080.66/25,515
  6. Step 6: Final answer
    x = 25,782.56

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Double scale
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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.