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Finding the Fourth Proportional to 7,369.98, 11,053.89 and 2,688.90

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Solution

The fourth proportional to 7,369.98, 11,053.89 and 2,688.90 is: 4,032.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,369.98 : 11,053.89 = 2,688.90 : x
  2. Step 2: Convert to fraction form
    7,369.98/11,053.89 = 2,688.90/x
  3. Step 3: Cross multiply
    7,369.98x = 11,053.89 × 2,688.90
  4. Step 4: Simplify right side
    7,369.98x = 29,722,804.82
  5. Step 5: Solve for x
    x = 29,722,804.82/7,369.98
  6. Step 6: Final answer
    x = 4,032.96

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1.5x scale

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.