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Finding the Fourth Proportional to 2,337.83, 3,506.90 and 777.77

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Solution

The fourth proportional to 2,337.83, 3,506.90 and 777.77 is: 1,166.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,337.83 : 3,506.90 = 777.77 : x
  2. Step 2: Convert to fraction form
    2,337.83/3,506.90 = 777.77/x
  3. Step 3: Cross multiply
    2,337.83x = 3,506.90 × 777.77
  4. Step 4: Simplify right side
    2,337.83x = 2,727,553.34
  5. Step 5: Solve for x
    x = 2,727,553.34/2,337.83
  6. Step 6: Final answer
    x = 1,166.70

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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.