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Finding the Fourth Proportional to 4,938.18, 7,408.12 and 1,652.28

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Solution

The fourth proportional to 4,938.18, 7,408.12 and 1,652.28 is: 2,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.18 : 7,408.12 = 1,652.28 : x
  2. Step 2: Convert to fraction form
    4,938.18/7,408.12 = 1,652.28/x
  3. Step 3: Cross multiply
    4,938.18x = 7,408.12 × 1,652.28
  4. Step 4: Simplify right side
    4,938.18x = 12,240,288.51
  5. Step 5: Solve for x
    x = 12,240,288.51/4,938.18
  6. Step 6: Final answer
    x = 2,478.70

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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.