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Finding the Fourth Proportional to 14,920.18, 20,599.94 and 9,257.22

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Solution

The fourth proportional to 14,920.18, 20,599.94 and 9,257.22 is: 12,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.18 : 20,599.94 = 9,257.22 : x
  2. Step 2: Convert to fraction form
    14,920.18/20,599.94 = 9,257.22/x
  3. Step 3: Cross multiply
    14,920.18x = 20,599.94 × 9,257.22
  4. Step 4: Simplify right side
    14,920.18x = 190,698,199.71
  5. Step 5: Solve for x
    x = 190,698,199.71/14,920.18
  6. Step 6: Final answer
    x = 12,781.23

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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.