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Finding the Fourth Proportional to 47,644.50, 65,749.42 and 26,428.18

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Solution

The fourth proportional to 47,644.50, 65,749.42 and 26,428.18 is: 36,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,644.50 : 65,749.42 = 26,428.18 : x
  2. Step 2: Convert to fraction form
    47,644.50/65,749.42 = 26,428.18/x
  3. Step 3: Cross multiply
    47,644.50x = 65,749.42 × 26,428.18
  4. Step 4: Simplify right side
    47,644.50x = 1,737,637,506.66
  5. Step 5: Solve for x
    x = 1,737,637,506.66/47,644.50
  6. Step 6: Final answer
    x = 36,470.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.