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Finding the Fourth Proportional to 47,859.72, 66,045.72 and 26,638.96

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Solution

The fourth proportional to 47,859.72, 66,045.72 and 26,638.96 is: 36,761.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,859.72 : 66,045.72 = 26,638.96 : x
  2. Step 2: Convert to fraction form
    47,859.72/66,045.72 = 26,638.96/x
  3. Step 3: Cross multiply
    47,859.72x = 66,045.72 × 26,638.96
  4. Step 4: Simplify right side
    47,859.72x = 1,759,389,293.25
  5. Step 5: Solve for x
    x = 1,759,389,293.25/47,859.72
  6. Step 6: Final answer
    x = 36,761.38

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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.