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Finding the Fourth Proportional to 4,888.80, 7,334.55 and 1,969.11

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Solution

The fourth proportional to 4,888.80, 7,334.55 and 1,969.11 is: 2,954.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.80 : 7,334.55 = 1,969.11 : x
  2. Step 2: Convert to fraction form
    4,888.80/7,334.55 = 1,969.11/x
  3. Step 3: Cross multiply
    4,888.80x = 7,334.55 × 1,969.11
  4. Step 4: Simplify right side
    4,888.80x = 14,442,535.75
  5. Step 5: Solve for x
    x = 14,442,535.75/4,888.80
  6. Step 6: Final answer
    x = 2,954.21

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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.