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Finding the Fourth Proportional to 64,379.34, 96,587.64 and 26,920.08

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Solution

The fourth proportional to 64,379.34, 96,587.64 and 26,920.08 is: 40,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,379.34 : 96,587.64 = 26,920.08 : x
  2. Step 2: Convert to fraction form
    64,379.34/96,587.64 = 26,920.08/x
  3. Step 3: Cross multiply
    64,379.34x = 96,587.64 × 26,920.08
  4. Step 4: Simplify right side
    64,379.34x = 2,600,146,995.81
  5. Step 5: Solve for x
    x = 2,600,146,995.81/64,379.34
  6. Step 6: Final answer
    x = 40,387.91

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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.