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Finding the Fourth Proportional to 7,368.70, 11,053.05 and 2,103.70

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Solution

The fourth proportional to 7,368.70, 11,053.05 and 2,103.70 is: 3,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.70 : 11,053.05 = 2,103.70 : x
  2. Step 2: Convert to fraction form
    7,368.70/11,053.05 = 2,103.70/x
  3. Step 3: Cross multiply
    7,368.70x = 11,053.05 × 2,103.70
  4. Step 4: Simplify right side
    7,368.70x = 23,252,301.29
  5. Step 5: Solve for x
    x = 23,252,301.29/7,368.70
  6. Step 6: Final answer
    x = 3,155.55

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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.