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Finding the Fourth Proportional to 9,865.66, 14,798.46 and 8,127.30

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Solution

The fourth proportional to 9,865.66, 14,798.46 and 8,127.30 is: 12,190.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,865.66 : 14,798.46 = 8,127.30 : x
  2. Step 2: Convert to fraction form
    9,865.66/14,798.46 = 8,127.30/x
  3. Step 3: Cross multiply
    9,865.66x = 14,798.46 × 8,127.30
  4. Step 4: Simplify right side
    9,865.66x = 120,271,409.33
  5. Step 5: Solve for x
    x = 120,271,409.33/9,865.66
  6. Step 6: Final answer
    x = 12,190.92

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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.