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Finding the Fourth Proportional to 7,317.72, 10,927.80 and 7,091.82

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Solution

The fourth proportional to 7,317.72, 10,927.80 and 7,091.82 is: 10,590.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,317.72 : 10,927.80 = 7,091.82 : x
  2. Step 2: Convert to fraction form
    7,317.72/10,927.80 = 7,091.82/x
  3. Step 3: Cross multiply
    7,317.72x = 10,927.80 × 7,091.82
  4. Step 4: Simplify right side
    7,317.72x = 77,497,990.60
  5. Step 5: Solve for x
    x = 77,497,990.60/7,317.72
  6. Step 6: Final answer
    x = 10,590.46

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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.