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Finding the Fourth Proportional to 22,662.60, 33,985.82 and 8,618.90

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Solution

The fourth proportional to 22,662.60, 33,985.82 and 8,618.90 is: 12,925.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,662.60 : 33,985.82 = 8,618.90 : x
  2. Step 2: Convert to fraction form
    22,662.60/33,985.82 = 8,618.90/x
  3. Step 3: Cross multiply
    22,662.60x = 33,985.82 × 8,618.90
  4. Step 4: Simplify right side
    22,662.60x = 292,920,384.00
  5. Step 5: Solve for x
    x = 292,920,384.00/22,662.60
  6. Step 6: Final answer
    x = 12,925.28

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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.