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Finding the Fourth Proportional to 53,296.64, 79,931.03 and 15,846.62

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Solution

The fourth proportional to 53,296.64, 79,931.03 and 15,846.62 is: 23,765.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,296.64 : 79,931.03 = 15,846.62 : x
  2. Step 2: Convert to fraction form
    53,296.64/79,931.03 = 15,846.62/x
  3. Step 3: Cross multiply
    53,296.64x = 79,931.03 × 15,846.62
  4. Step 4: Simplify right side
    53,296.64x = 1,266,636,779.21
  5. Step 5: Solve for x
    x = 1,266,636,779.21/53,296.64
  6. Step 6: Final answer
    x = 23,765.79

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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.