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Finding the Fourth Proportional to 17,641.53, 26,461.62 and 7,108.47

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Solution

The fourth proportional to 17,641.53, 26,461.62 and 7,108.47 is: 10,662.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,641.53 : 26,461.62 = 7,108.47 : x
  2. Step 2: Convert to fraction form
    17,641.53/26,461.62 = 7,108.47/x
  3. Step 3: Cross multiply
    17,641.53x = 26,461.62 × 7,108.47
  4. Step 4: Simplify right side
    17,641.53x = 188,101,631.92
  5. Step 5: Solve for x
    x = 188,101,631.92/17,641.53
  6. Step 6: Final answer
    x = 10,662.43

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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.