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Finding the Fourth Proportional to 24,297.60, 36,446.40 and 7,881.60

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Solution

The fourth proportional to 24,297.60, 36,446.40 and 7,881.60 is: 11,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,297.60 : 36,446.40 = 7,881.60 : x
  2. Step 2: Convert to fraction form
    24,297.60/36,446.40 = 7,881.60/x
  3. Step 3: Cross multiply
    24,297.60x = 36,446.40 × 7,881.60
  4. Step 4: Simplify right side
    24,297.60x = 287,255,946.24
  5. Step 5: Solve for x
    x = 287,255,946.24/24,297.60
  6. Step 6: Final answer
    x = 11,822.40

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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.