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Finding the Fourth Proportional to 7,677.98, 11,530.83 and 7,060.55

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Solution

The fourth proportional to 7,677.98, 11,530.83 and 7,060.55 is: 10,603.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,677.98 : 11,530.83 = 7,060.55 : x
  2. Step 2: Convert to fraction form
    7,677.98/11,530.83 = 7,060.55/x
  3. Step 3: Cross multiply
    7,677.98x = 11,530.83 × 7,060.55
  4. Step 4: Simplify right side
    7,677.98x = 81,414,001.76
  5. Step 5: Solve for x
    x = 81,414,001.76/7,677.98
  6. Step 6: Final answer
    x = 10,603.57

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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.