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Finding the Fourth Proportional to 22,307.70, 33,460.32 and 7,515.09

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Solution

The fourth proportional to 22,307.70, 33,460.32 and 7,515.09 is: 11,272.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,307.70 : 33,460.32 = 7,515.09 : x
  2. Step 2: Convert to fraction form
    22,307.70/33,460.32 = 7,515.09/x
  3. Step 3: Cross multiply
    22,307.70x = 33,460.32 × 7,515.09
  4. Step 4: Simplify right side
    22,307.70x = 251,457,316.23
  5. Step 5: Solve for x
    x = 251,457,316.23/22,307.70
  6. Step 6: Final answer
    x = 11,272.22

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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.