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Finding the Fourth Proportional to 4,788.48, 6,608.88 and 4,002.24

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Solution

The fourth proportional to 4,788.48, 6,608.88 and 4,002.24 is: 5,523.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.48 : 6,608.88 = 4,002.24 : x
  2. Step 2: Convert to fraction form
    4,788.48/6,608.88 = 4,002.24/x
  3. Step 3: Cross multiply
    4,788.48x = 6,608.88 × 4,002.24
  4. Step 4: Simplify right side
    4,788.48x = 26,450,323.89
  5. Step 5: Solve for x
    x = 26,450,323.89/4,788.48
  6. Step 6: Final answer
    x = 5,523.74

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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.