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Finding the Fourth Proportional to 15,220.60, 22,869.30 and 9,676.60

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Solution

The fourth proportional to 15,220.60, 22,869.30 and 9,676.60 is: 14,539.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,220.60 : 22,869.30 = 9,676.60 : x
  2. Step 2: Convert to fraction form
    15,220.60/22,869.30 = 9,676.60/x
  3. Step 3: Cross multiply
    15,220.60x = 22,869.30 × 9,676.60
  4. Step 4: Simplify right side
    15,220.60x = 221,297,068.38
  5. Step 5: Solve for x
    x = 221,297,068.38/15,220.60
  6. Step 6: Final answer
    x = 14,539.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.