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Finding the Fourth Proportional to 17,919.18, 26,870.58 and 9,597.78

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Solution

The fourth proportional to 17,919.18, 26,870.58 and 9,597.78 is: 14,392.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,919.18 : 26,870.58 = 9,597.78 : x
  2. Step 2: Convert to fraction form
    17,919.18/26,870.58 = 9,597.78/x
  3. Step 3: Cross multiply
    17,919.18x = 26,870.58 × 9,597.78
  4. Step 4: Simplify right side
    17,919.18x = 257,897,915.31
  5. Step 5: Solve for x
    x = 257,897,915.31/17,919.18
  6. Step 6: Final answer
    x = 14,392.28

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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.