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Finding the Fourth Proportional to 7,530.98, 11,251.91 and 7,272.59

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Solution

The fourth proportional to 7,530.98, 11,251.91 and 7,272.59 is: 10,865.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,530.98 : 11,251.91 = 7,272.59 : x
  2. Step 2: Convert to fraction form
    7,530.98/11,251.91 = 7,272.59/x
  3. Step 3: Cross multiply
    7,530.98x = 11,251.91 × 7,272.59
  4. Step 4: Simplify right side
    7,530.98x = 81,830,490.07
  5. Step 5: Solve for x
    x = 81,830,490.07/7,530.98
  6. Step 6: Final answer
    x = 10,865.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.