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Finding the Fourth Proportional to 64,854.60, 97,269.90 and 18,097.80

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Solution

The fourth proportional to 64,854.60, 97,269.90 and 18,097.80 is: 27,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,854.60 : 97,269.90 = 18,097.80 : x
  2. Step 2: Convert to fraction form
    64,854.60/97,269.90 = 18,097.80/x
  3. Step 3: Cross multiply
    64,854.60x = 97,269.90 × 18,097.80
  4. Step 4: Simplify right side
    64,854.60x = 1,760,371,196.22
  5. Step 5: Solve for x
    x = 1,760,371,196.22/64,854.60
  6. Step 6: Final answer
    x = 27,143.35

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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.