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Finding the Fourth Proportional to 22,307.81, 33,459.89 and 7,516.40

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Solution

The fourth proportional to 22,307.81, 33,459.89 and 7,516.40 is: 11,273.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,307.81 : 33,459.89 = 7,516.40 : x
  2. Step 2: Convert to fraction form
    22,307.81/33,459.89 = 7,516.40/x
  3. Step 3: Cross multiply
    22,307.81x = 33,459.89 × 7,516.40
  4. Step 4: Simplify right side
    22,307.81x = 251,497,712.31
  5. Step 5: Solve for x
    x = 251,497,712.31/22,307.81
  6. Step 6: Final answer
    x = 11,273.98

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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.