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Finding the Fourth Proportional to 14,599.73, 20,139.98 and 9,220.22

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Solution

The fourth proportional to 14,599.73, 20,139.98 and 9,220.22 is: 12,719.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,599.73 : 20,139.98 = 9,220.22 : x
  2. Step 2: Convert to fraction form
    14,599.73/20,139.98 = 9,220.22/x
  3. Step 3: Cross multiply
    14,599.73x = 20,139.98 × 9,220.22
  4. Step 4: Simplify right side
    14,599.73x = 185,694,899.59
  5. Step 5: Solve for x
    x = 185,694,899.59/14,599.73
  6. Step 6: Final answer
    x = 12,719.07

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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.