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Finding the Fourth Proportional to 64,564.94, 89,101.91 and 35,885.18

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Solution

The fourth proportional to 64,564.94, 89,101.91 and 35,885.18 is: 49,522.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,564.94 : 89,101.91 = 35,885.18 : x
  2. Step 2: Convert to fraction form
    64,564.94/89,101.91 = 35,885.18/x
  3. Step 3: Cross multiply
    64,564.94x = 89,101.91 × 35,885.18
  4. Step 4: Simplify right side
    64,564.94x = 3,197,437,453.76
  5. Step 5: Solve for x
    x = 3,197,437,453.76/64,564.94
  6. Step 6: Final answer
    x = 49,522.81

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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.