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Finding the Fourth Proportional to 8,622.95, 11,900.10 and 4,845.92

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Solution

The fourth proportional to 8,622.95, 11,900.10 and 4,845.92 is: 6,687.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.95 : 11,900.10 = 4,845.92 : x
  2. Step 2: Convert to fraction form
    8,622.95/11,900.10 = 4,845.92/x
  3. Step 3: Cross multiply
    8,622.95x = 11,900.10 × 4,845.92
  4. Step 4: Simplify right side
    8,622.95x = 57,666,908.36
  5. Step 5: Solve for x
    x = 57,666,908.36/8,622.95
  6. Step 6: Final answer
    x = 6,687.61

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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.