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Finding the Fourth Proportional to 64,936.40, 97,404.60 and 35,411.90

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Solution

The fourth proportional to 64,936.40, 97,404.60 and 35,411.90 is: 53,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,936.40 : 97,404.60 = 35,411.90 : x
  2. Step 2: Convert to fraction form
    64,936.40/97,404.60 = 35,411.90/x
  3. Step 3: Cross multiply
    64,936.40x = 97,404.60 × 35,411.90
  4. Step 4: Simplify right side
    64,936.40x = 3,449,281,954.74
  5. Step 5: Solve for x
    x = 3,449,281,954.74/64,936.40
  6. Step 6: Final answer
    x = 53,117.85

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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.