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Finding the Fourth Proportional to 64,928.60, 97,316.10 and 27,488.60

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Solution

The fourth proportional to 64,928.60, 97,316.10 and 27,488.60 is: 41,200.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,928.60 : 97,316.10 = 27,488.60 : x
  2. Step 2: Convert to fraction form
    64,928.60/97,316.10 = 27,488.60/x
  3. Step 3: Cross multiply
    64,928.60x = 97,316.10 × 27,488.60
  4. Step 4: Simplify right side
    64,928.60x = 2,675,083,346.46
  5. Step 5: Solve for x
    x = 2,675,083,346.46/64,928.60
  6. Step 6: Final answer
    x = 41,200.39

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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.