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Finding the Fourth Proportional to 4,885.61, 7,327.60 and 1,765.01

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Solution

The fourth proportional to 4,885.61, 7,327.60 and 1,765.01 is: 2,647.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.61 : 7,327.60 = 1,765.01 : x
  2. Step 2: Convert to fraction form
    4,885.61/7,327.60 = 1,765.01/x
  3. Step 3: Cross multiply
    4,885.61x = 7,327.60 × 1,765.01
  4. Step 4: Simplify right side
    4,885.61x = 12,933,301.18
  5. Step 5: Solve for x
    x = 12,933,301.18/4,885.61
  6. Step 6: Final answer
    x = 2,647.23

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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.