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Finding the Fourth Proportional to 64,749.64, 97,135.84 and 26,798.80

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Solution

The fourth proportional to 64,749.64, 97,135.84 and 26,798.80 is: 40,202.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,749.64 : 97,135.84 = 26,798.80 : x
  2. Step 2: Convert to fraction form
    64,749.64/97,135.84 = 26,798.80/x
  3. Step 3: Cross multiply
    64,749.64x = 97,135.84 × 26,798.80
  4. Step 4: Simplify right side
    64,749.64x = 2,603,123,948.99
  5. Step 5: Solve for x
    x = 2,603,123,948.99/64,749.64
  6. Step 6: Final answer
    x = 40,202.91

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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.