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Finding the Fourth Proportional to 65,118.60, 97,688.70 and 27,696.60

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Solution

The fourth proportional to 65,118.60, 97,688.70 and 27,696.60 is: 41,549.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,118.60 : 97,688.70 = 27,696.60 : x
  2. Step 2: Convert to fraction form
    65,118.60/97,688.70 = 27,696.60/x
  3. Step 3: Cross multiply
    65,118.60x = 97,688.70 × 27,696.60
  4. Step 4: Simplify right side
    65,118.60x = 2,705,644,848.42
  5. Step 5: Solve for x
    x = 2,705,644,848.42/65,118.60
  6. Step 6: Final answer
    x = 41,549.49

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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.