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Finding the Fourth Proportional to 63,165.84, 94,758.12 and 21,032.16

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Solution

The fourth proportional to 63,165.84, 94,758.12 and 21,032.16 is: 31,551.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,165.84 : 94,758.12 = 21,032.16 : x
  2. Step 2: Convert to fraction form
    63,165.84/94,758.12 = 21,032.16/x
  3. Step 3: Cross multiply
    63,165.84x = 94,758.12 × 21,032.16
  4. Step 4: Simplify right side
    63,165.84x = 1,992,967,941.14
  5. Step 5: Solve for x
    x = 1,992,967,941.14/63,165.84
  6. Step 6: Final answer
    x = 31,551.36

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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.