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Finding the Fourth Proportional to 19,074.18, 28,613.18 and 7,069.56

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Solution

The fourth proportional to 19,074.18, 28,613.18 and 7,069.56 is: 10,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,074.18 : 28,613.18 = 7,069.56 : x
  2. Step 2: Convert to fraction form
    19,074.18/28,613.18 = 7,069.56/x
  3. Step 3: Cross multiply
    19,074.18x = 28,613.18 × 7,069.56
  4. Step 4: Simplify right side
    19,074.18x = 202,282,664.12
  5. Step 5: Solve for x
    x = 202,282,664.12/19,074.18
  6. Step 6: Final answer
    x = 10,605.05

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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.