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Finding the Fourth Proportional to 61,805.18, 92,478.12 and 36,858.80

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Solution

The fourth proportional to 61,805.18, 92,478.12 and 36,858.80 is: 55,151.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,805.18 : 92,478.12 = 36,858.80 : x
  2. Step 2: Convert to fraction form
    61,805.18/92,478.12 = 36,858.80/x
  3. Step 3: Cross multiply
    61,805.18x = 92,478.12 × 36,858.80
  4. Step 4: Simplify right side
    61,805.18x = 3,408,632,529.46
  5. Step 5: Solve for x
    x = 3,408,632,529.46/61,805.18
  6. Step 6: Final answer
    x = 55,151.24

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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.