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Finding the Fourth Proportional to 8,886.99, 12,263.72 and 4,908.02

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Solution

The fourth proportional to 8,886.99, 12,263.72 and 4,908.02 is: 6,772.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.99 : 12,263.72 = 4,908.02 : x
  2. Step 2: Convert to fraction form
    8,886.99/12,263.72 = 4,908.02/x
  3. Step 3: Cross multiply
    8,886.99x = 12,263.72 × 4,908.02
  4. Step 4: Simplify right side
    8,886.99x = 60,190,538.57
  5. Step 5: Solve for x
    x = 60,190,538.57/8,886.99
  6. Step 6: Final answer
    x = 6,772.88

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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.