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Finding the Fourth Proportional to 4,774.68, 7,153.86 and 2,920.08

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Solution

The fourth proportional to 4,774.68, 7,153.86 and 2,920.08 is: 4,375.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,774.68 : 7,153.86 = 2,920.08 : x
  2. Step 2: Convert to fraction form
    4,774.68/7,153.86 = 2,920.08/x
  3. Step 3: Cross multiply
    4,774.68x = 7,153.86 × 2,920.08
  4. Step 4: Simplify right side
    4,774.68x = 20,889,843.51
  5. Step 5: Solve for x
    x = 20,889,843.51/4,774.68
  6. Step 6: Final answer
    x = 4,375.13

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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.