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Finding the Fourth Proportional to 4,848.88, 7,272.08 and 2,074.20

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Solution

The fourth proportional to 4,848.88, 7,272.08 and 2,074.20 is: 3,110.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,848.88 : 7,272.08 = 2,074.20 : x
  2. Step 2: Convert to fraction form
    4,848.88/7,272.08 = 2,074.20/x
  3. Step 3: Cross multiply
    4,848.88x = 7,272.08 × 2,074.20
  4. Step 4: Simplify right side
    4,848.88x = 15,083,748.34
  5. Step 5: Solve for x
    x = 15,083,748.34/4,848.88
  6. Step 6: Final answer
    x = 3,110.77

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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.