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Finding the Fourth Proportional to 4,938.55, 7,372.61 and 4,765.55

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Solution

The fourth proportional to 4,938.55, 7,372.61 and 4,765.55 is: 7,114.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.55 : 7,372.61 = 4,765.55 : x
  2. Step 2: Convert to fraction form
    4,938.55/7,372.61 = 4,765.55/x
  3. Step 3: Cross multiply
    4,938.55x = 7,372.61 × 4,765.55
  4. Step 4: Simplify right side
    4,938.55x = 35,134,498.77
  5. Step 5: Solve for x
    x = 35,134,498.77/4,938.55
  6. Step 6: Final answer
    x = 7,114.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.