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Finding the Fourth Proportional to 22,371.40, 33,567.90 and 15,783.40

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Solution

The fourth proportional to 22,371.40, 33,567.90 and 15,783.40 is: 23,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,371.40 : 33,567.90 = 15,783.40 : x
  2. Step 2: Convert to fraction form
    22,371.40/33,567.90 = 15,783.40/x
  3. Step 3: Cross multiply
    22,371.40x = 33,567.90 × 15,783.40
  4. Step 4: Simplify right side
    22,371.40x = 529,815,592.86
  5. Step 5: Solve for x
    x = 529,815,592.86/22,371.40
  6. Step 6: Final answer
    x = 23,682.72

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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.