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Finding the Fourth Proportional to 22,945.61, 34,430.96 and 8,906.20

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Solution

The fourth proportional to 22,945.61, 34,430.96 and 8,906.20 is: 13,364.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,945.61 : 34,430.96 = 8,906.20 : x
  2. Step 2: Convert to fraction form
    22,945.61/34,430.96 = 8,906.20/x
  3. Step 3: Cross multiply
    22,945.61x = 34,430.96 × 8,906.20
  4. Step 4: Simplify right side
    22,945.61x = 306,648,952.14
  5. Step 5: Solve for x
    x = 306,648,952.14/22,945.61
  6. Step 6: Final answer
    x = 13,364.17

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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.