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Finding the Fourth Proportional to 9,213.76, 12,715.01 and 5,022.01

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Solution

The fourth proportional to 9,213.76, 12,715.01 and 5,022.01 is: 6,930.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,213.76 : 12,715.01 = 5,022.01 : x
  2. Step 2: Convert to fraction form
    9,213.76/12,715.01 = 5,022.01/x
  3. Step 3: Cross multiply
    9,213.76x = 12,715.01 × 5,022.01
  4. Step 4: Simplify right side
    9,213.76x = 63,854,907.37
  5. Step 5: Solve for x
    x = 63,854,907.37/9,213.76
  6. Step 6: Final answer
    x = 6,930.39

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.