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Finding the Fourth Proportional to 61,390.88, 84,719.76 and 36,252.80

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Solution

The fourth proportional to 61,390.88, 84,719.76 and 36,252.80 is: 50,029.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,390.88 : 84,719.76 = 36,252.80 : x
  2. Step 2: Convert to fraction form
    61,390.88/84,719.76 = 36,252.80/x
  3. Step 3: Cross multiply
    61,390.88x = 84,719.76 × 36,252.80
  4. Step 4: Simplify right side
    61,390.88x = 3,071,328,515.33
  5. Step 5: Solve for x
    x = 3,071,328,515.33/61,390.88
  6. Step 6: Final answer
    x = 50,029.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.