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Finding the Fourth Proportional to 61,347.21, 92,020.77 and 19,794.21

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Solution

The fourth proportional to 61,347.21, 92,020.77 and 19,794.21 is: 29,691.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,347.21 : 92,020.77 = 19,794.21 : x
  2. Step 2: Convert to fraction form
    61,347.21/92,020.77 = 19,794.21/x
  3. Step 3: Cross multiply
    61,347.21x = 92,020.77 × 19,794.21
  4. Step 4: Simplify right side
    61,347.21x = 1,821,478,445.74
  5. Step 5: Solve for x
    x = 1,821,478,445.74/61,347.21
  6. Step 6: Final answer
    x = 29,691.30

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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.