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Finding the Fourth Proportional to 17,411, 26,094.60 and 12,490.28

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Solution

The fourth proportional to 17,411, 26,094.60 and 12,490.28 is: 18,719.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,411 : 26,094.60 = 12,490.28 : x
  2. Step 2: Convert to fraction form
    17,411/26,094.60 = 12,490.28/x
  3. Step 3: Cross multiply
    17,411x = 26,094.60 × 12,490.28
  4. Step 4: Simplify right side
    17,411x = 325,928,860.49
  5. Step 5: Solve for x
    x = 325,928,860.49/17,411
  6. Step 6: Final answer
    x = 18,719.71

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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.