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Finding the Fourth Proportional to 42,891.88, 64,337.40 and 16,578.22

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Solution

The fourth proportional to 42,891.88, 64,337.40 and 16,578.22 is: 24,867.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,891.88 : 64,337.40 = 16,578.22 : x
  2. Step 2: Convert to fraction form
    42,891.88/64,337.40 = 16,578.22/x
  3. Step 3: Cross multiply
    42,891.88x = 64,337.40 × 16,578.22
  4. Step 4: Simplify right side
    42,891.88x = 1,066,599,571.43
  5. Step 5: Solve for x
    x = 1,066,599,571.43/42,891.88
  6. Step 6: Final answer
    x = 24,867.17

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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.