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Finding the Fourth Proportional to 4,774.56, 7,159.68 and 1,486.68

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Solution

The fourth proportional to 4,774.56, 7,159.68 and 1,486.68 is: 2,229.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,774.56 : 7,159.68 = 1,486.68 : x
  2. Step 2: Convert to fraction form
    4,774.56/7,159.68 = 1,486.68/x
  3. Step 3: Cross multiply
    4,774.56x = 7,159.68 × 1,486.68
  4. Step 4: Simplify right side
    4,774.56x = 10,644,153.06
  5. Step 5: Solve for x
    x = 10,644,153.06/4,774.56
  6. Step 6: Final answer
    x = 2,229.35

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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.