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Finding the Fourth Proportional to 8,763.70, 12,093.81 and 4,784.80

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Solution

The fourth proportional to 8,763.70, 12,093.81 and 4,784.80 is: 6,602.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.70 : 12,093.81 = 4,784.80 : x
  2. Step 2: Convert to fraction form
    8,763.70/12,093.81 = 4,784.80/x
  3. Step 3: Cross multiply
    8,763.70x = 12,093.81 × 4,784.80
  4. Step 4: Simplify right side
    8,763.70x = 57,866,389.66
  5. Step 5: Solve for x
    x = 57,866,389.66/8,763.70
  6. Step 6: Final answer
    x = 6,602.97

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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.