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Finding the Fourth Proportional to 61,354.36, 92,048.26 and 21,915.48

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Solution

The fourth proportional to 61,354.36, 92,048.26 and 21,915.48 is: 32,879.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,354.36 : 92,048.26 = 21,915.48 : x
  2. Step 2: Convert to fraction form
    61,354.36/92,048.26 = 21,915.48/x
  3. Step 3: Cross multiply
    61,354.36x = 92,048.26 × 21,915.48
  4. Step 4: Simplify right side
    61,354.36x = 2,017,281,801.06
  5. Step 5: Solve for x
    x = 2,017,281,801.06/61,354.36
  6. Step 6: Final answer
    x = 32,879.19

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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.