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Finding the Fourth Proportional to 8,912.01, 12,283.81 and 6,254.81

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Solution

The fourth proportional to 8,912.01, 12,283.81 and 6,254.81 is: 8,621.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.01 : 12,283.81 = 6,254.81 : x
  2. Step 2: Convert to fraction form
    8,912.01/12,283.81 = 6,254.81/x
  3. Step 3: Cross multiply
    8,912.01x = 12,283.81 × 6,254.81
  4. Step 4: Simplify right side
    8,912.01x = 76,832,897.63
  5. Step 5: Solve for x
    x = 76,832,897.63/8,912.01
  6. Step 6: Final answer
    x = 8,621.28

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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.