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Finding the Fourth Proportional to 38,676.16, 53,355 and 26,756.08

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Solution

The fourth proportional to 38,676.16, 53,355 and 26,756.08 is: 36,910.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,676.16 : 53,355 = 26,756.08 : x
  2. Step 2: Convert to fraction form
    38,676.16/53,355 = 26,756.08/x
  3. Step 3: Cross multiply
    38,676.16x = 53,355 × 26,756.08
  4. Step 4: Simplify right side
    38,676.16x = 1,427,570,648.40
  5. Step 5: Solve for x
    x = 1,427,570,648.40/38,676.16
  6. Step 6: Final answer
    x = 36,910.87

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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.