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Finding the Fourth Proportional to 8,769.58, 12,101.95 and 4,790.69

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Solution

The fourth proportional to 8,769.58, 12,101.95 and 4,790.69 is: 6,611.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.58 : 12,101.95 = 4,790.69 : x
  2. Step 2: Convert to fraction form
    8,769.58/12,101.95 = 4,790.69/x
  3. Step 3: Cross multiply
    8,769.58x = 12,101.95 × 4,790.69
  4. Step 4: Simplify right side
    8,769.58x = 57,976,681.71
  5. Step 5: Solve for x
    x = 57,976,681.71/8,769.58
  6. Step 6: Final answer
    x = 6,611.11

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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.