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Finding the Fourth Proportional to 5,074.95, 7,605.47 and 2,854.87

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Solution

The fourth proportional to 5,074.95, 7,605.47 and 2,854.87 is: 4,278.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,074.95 : 7,605.47 = 2,854.87 : x
  2. Step 2: Convert to fraction form
    5,074.95/7,605.47 = 2,854.87/x
  3. Step 3: Cross multiply
    5,074.95x = 7,605.47 × 2,854.87
  4. Step 4: Simplify right side
    5,074.95x = 21,712,616.26
  5. Step 5: Solve for x
    x = 21,712,616.26/5,074.95
  6. Step 6: Final answer
    x = 4,278.39

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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.