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Finding the Fourth Proportional to 5,776.88, 7,967.56 and 4,981.52

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Solution

The fourth proportional to 5,776.88, 7,967.56 and 4,981.52 is: 6,870.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776.88 : 7,967.56 = 4,981.52 : x
  2. Step 2: Convert to fraction form
    5,776.88/7,967.56 = 4,981.52/x
  3. Step 3: Cross multiply
    5,776.88x = 7,967.56 × 4,981.52
  4. Step 4: Simplify right side
    5,776.88x = 39,690,559.49
  5. Step 5: Solve for x
    x = 39,690,559.49/5,776.88
  6. Step 6: Final answer
    x = 6,870.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.