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Finding the Fourth Proportional to 17,888.98, 24,669.79 and 13,039.30

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Solution

The fourth proportional to 17,888.98, 24,669.79 and 13,039.30 is: 17,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,888.98 : 24,669.79 = 13,039.30 : x
  2. Step 2: Convert to fraction form
    17,888.98/24,669.79 = 13,039.30/x
  3. Step 3: Cross multiply
    17,888.98x = 24,669.79 × 13,039.30
  4. Step 4: Simplify right side
    17,888.98x = 321,676,604.20
  5. Step 5: Solve for x
    x = 321,676,604.20/17,888.98
  6. Step 6: Final answer
    x = 17,981.84

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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.