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Finding the Fourth Proportional to 17,859.32, 26,787.10 and 7,330.45

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Solution

The fourth proportional to 17,859.32, 26,787.10 and 7,330.45 is: 10,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,859.32 : 26,787.10 = 7,330.45 : x
  2. Step 2: Convert to fraction form
    17,859.32/26,787.10 = 7,330.45/x
  3. Step 3: Cross multiply
    17,859.32x = 26,787.10 × 7,330.45
  4. Step 4: Simplify right side
    17,859.32x = 196,361,478.87
  5. Step 5: Solve for x
    x = 196,361,478.87/17,859.32
  6. Step 6: Final answer
    x = 10,994.90

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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.