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Finding the Fourth Proportional to 7,049.52, 10,574.19 and 2,118.99

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Solution

The fourth proportional to 7,049.52, 10,574.19 and 2,118.99 is: 3,178.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,049.52 : 10,574.19 = 2,118.99 : x
  2. Step 2: Convert to fraction form
    7,049.52/10,574.19 = 2,118.99/x
  3. Step 3: Cross multiply
    7,049.52x = 10,574.19 × 2,118.99
  4. Step 4: Simplify right side
    7,049.52x = 22,406,602.87
  5. Step 5: Solve for x
    x = 22,406,602.87/7,049.52
  6. Step 6: Final answer
    x = 3,178.46

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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.