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Finding the Fourth Proportional to 64,590.21, 96,827.88 and 25,138.08

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Solution

The fourth proportional to 64,590.21, 96,827.88 and 25,138.08 is: 37,684.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,590.21 : 96,827.88 = 25,138.08 : x
  2. Step 2: Convert to fraction form
    64,590.21/96,827.88 = 25,138.08/x
  3. Step 3: Cross multiply
    64,590.21x = 96,827.88 × 25,138.08
  4. Step 4: Simplify right side
    64,590.21x = 2,434,066,993.67
  5. Step 5: Solve for x
    x = 2,434,066,993.67/64,590.21
  6. Step 6: Final answer
    x = 37,684.77

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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.