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Finding the Fourth Proportional to 26,318.40, 39,434.40 and 22,430.40

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Solution

The fourth proportional to 26,318.40, 39,434.40 and 22,430.40 is: 33,608.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,318.40 : 39,434.40 = 22,430.40 : x
  2. Step 2: Convert to fraction form
    26,318.40/39,434.40 = 22,430.40/x
  3. Step 3: Cross multiply
    26,318.40x = 39,434.40 × 22,430.40
  4. Step 4: Simplify right side
    26,318.40x = 884,529,365.76
  5. Step 5: Solve for x
    x = 884,529,365.76/26,318.40
  6. Step 6: Final answer
    x = 33,608.78

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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.