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Finding the Fourth Proportional to 22,472.60, 33,708.86 and 7,681.64

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Solution

The fourth proportional to 22,472.60, 33,708.86 and 7,681.64 is: 11,522.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,472.60 : 33,708.86 = 7,681.64 : x
  2. Step 2: Convert to fraction form
    22,472.60/33,708.86 = 7,681.64/x
  3. Step 3: Cross multiply
    22,472.60x = 33,708.86 × 7,681.64
  4. Step 4: Simplify right side
    22,472.60x = 258,939,327.33
  5. Step 5: Solve for x
    x = 258,939,327.33/22,472.60
  6. Step 6: Final answer
    x = 11,522.45

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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.