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Finding the Fourth Proportional to 4,948.35, 7,420.35 and 1,484.79

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Solution

The fourth proportional to 4,948.35, 7,420.35 and 1,484.79 is: 2,226.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,948.35 : 7,420.35 = 1,484.79 : x
  2. Step 2: Convert to fraction form
    4,948.35/7,420.35 = 1,484.79/x
  3. Step 3: Cross multiply
    4,948.35x = 7,420.35 × 1,484.79
  4. Step 4: Simplify right side
    4,948.35x = 11,017,661.48
  5. Step 5: Solve for x
    x = 11,017,661.48/4,948.35
  6. Step 6: Final answer
    x = 2,226.53

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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.