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Finding the Fourth Proportional to 17,859.32, 24,619.02 and 11,878.28

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Solution

The fourth proportional to 17,859.32, 24,619.02 and 11,878.28 is: 16,374.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,859.32 : 24,619.02 = 11,878.28 : x
  2. Step 2: Convert to fraction form
    17,859.32/24,619.02 = 11,878.28/x
  3. Step 3: Cross multiply
    17,859.32x = 24,619.02 × 11,878.28
  4. Step 4: Simplify right side
    17,859.32x = 292,431,489.79
  5. Step 5: Solve for x
    x = 292,431,489.79/17,859.32
  6. Step 6: Final answer
    x = 16,374.17

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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.