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Finding the Fourth Proportional to 8,858.93, 12,218.05 and 6,466.22

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Solution

The fourth proportional to 8,858.93, 12,218.05 and 6,466.22 is: 8,918.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.93 : 12,218.05 = 6,466.22 : x
  2. Step 2: Convert to fraction form
    8,858.93/12,218.05 = 6,466.22/x
  3. Step 3: Cross multiply
    8,858.93x = 12,218.05 × 6,466.22
  4. Step 4: Simplify right side
    8,858.93x = 79,004,522.02
  5. Step 5: Solve for x
    x = 79,004,522.02/8,858.93
  6. Step 6: Final answer
    x = 8,918.06

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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.