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Finding the Fourth Proportional to 18,694.80, 28,041.59 and 7,598.51

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Solution

The fourth proportional to 18,694.80, 28,041.59 and 7,598.51 is: 11,397.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,694.80 : 28,041.59 = 7,598.51 : x
  2. Step 2: Convert to fraction form
    18,694.80/28,041.59 = 7,598.51/x
  3. Step 3: Cross multiply
    18,694.80x = 28,041.59 × 7,598.51
  4. Step 4: Simplify right side
    18,694.80x = 213,074,285.98
  5. Step 5: Solve for x
    x = 213,074,285.98/18,694.80
  6. Step 6: Final answer
    x = 11,397.52

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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.