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Finding the Fourth Proportional to 19,400.64, 26,770.62 and 10,901.62

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Solution

The fourth proportional to 19,400.64, 26,770.62 and 10,901.62 is: 15,042.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,400.64 : 26,770.62 = 10,901.62 : x
  2. Step 2: Convert to fraction form
    19,400.64/26,770.62 = 10,901.62/x
  3. Step 3: Cross multiply
    19,400.64x = 26,770.62 × 10,901.62
  4. Step 4: Simplify right side
    19,400.64x = 291,843,126.40
  5. Step 5: Solve for x
    x = 291,843,126.40/19,400.64
  6. Step 6: Final answer
    x = 15,042.96

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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.