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Finding the Fourth Proportional to 64,885.76, 97,289.76 and 23,318.72

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Solution

The fourth proportional to 64,885.76, 97,289.76 and 23,318.72 is: 34,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,885.76 : 97,289.76 = 23,318.72 : x
  2. Step 2: Convert to fraction form
    64,885.76/97,289.76 = 23,318.72/x
  3. Step 3: Cross multiply
    64,885.76x = 97,289.76 × 23,318.72
  4. Step 4: Simplify right side
    64,885.76x = 2,268,672,672.31
  5. Step 5: Solve for x
    x = 2,268,672,672.31/64,885.76
  6. Step 6: Final answer
    x = 34,964.11

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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.