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Finding the Fourth Proportional to 61,353.21, 92,029.77 and 19,800.21

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Solution

The fourth proportional to 61,353.21, 92,029.77 and 19,800.21 is: 29,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,353.21 : 92,029.77 = 19,800.21 : x
  2. Step 2: Convert to fraction form
    61,353.21/92,029.77 = 19,800.21/x
  3. Step 3: Cross multiply
    61,353.21x = 92,029.77 × 19,800.21
  4. Step 4: Simplify right side
    61,353.21x = 1,822,208,772.25
  5. Step 5: Solve for x
    x = 1,822,208,772.25/61,353.21
  6. Step 6: Final answer
    x = 29,700.30

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1.5x scale

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.