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Finding the Fourth Proportional to 61,354.21, 92,031.27 and 19,801.21

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Solution

The fourth proportional to 61,354.21, 92,031.27 and 19,801.21 is: 29,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,354.21 : 92,031.27 = 19,801.21 : x
  2. Step 2: Convert to fraction form
    61,354.21/92,031.27 = 19,801.21/x
  3. Step 3: Cross multiply
    61,354.21x = 92,031.27 × 19,801.21
  4. Step 4: Simplify right side
    61,354.21x = 1,822,330,503.84
  5. Step 5: Solve for x
    x = 1,822,330,503.84/61,354.21
  6. Step 6: Final answer
    x = 29,701.80

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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.