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Finding the Fourth Proportional to 14,899.22, 20,558.64 and 8,610.38

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Solution

The fourth proportional to 14,899.22, 20,558.64 and 8,610.38 is: 11,881.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,899.22 : 20,558.64 = 8,610.38 : x
  2. Step 2: Convert to fraction form
    14,899.22/20,558.64 = 8,610.38/x
  3. Step 3: Cross multiply
    14,899.22x = 20,558.64 × 8,610.38
  4. Step 4: Simplify right side
    14,899.22x = 177,017,702.68
  5. Step 5: Solve for x
    x = 177,017,702.68/14,899.22
  6. Step 6: Final answer
    x = 11,881.00

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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.