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Finding the Fourth Proportional to 17,897.70, 26,858.70 and 10,000.20

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Solution

The fourth proportional to 17,897.70, 26,858.70 and 10,000.20 is: 15,007.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,897.70 : 26,858.70 = 10,000.20 : x
  2. Step 2: Convert to fraction form
    17,897.70/26,858.70 = 10,000.20/x
  3. Step 3: Cross multiply
    17,897.70x = 26,858.70 × 10,000.20
  4. Step 4: Simplify right side
    17,897.70x = 268,592,371.74
  5. Step 5: Solve for x
    x = 268,592,371.74/17,897.70
  6. Step 6: Final answer
    x = 15,007.09

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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.