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Finding the Fourth Proportional to 23,495.62, 32,424.16 and 12,885.16

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Solution

The fourth proportional to 23,495.62, 32,424.16 and 12,885.16 is: 17,781.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,495.62 : 32,424.16 = 12,885.16 : x
  2. Step 2: Convert to fraction form
    23,495.62/32,424.16 = 12,885.16/x
  3. Step 3: Cross multiply
    23,495.62x = 32,424.16 × 12,885.16
  4. Step 4: Simplify right side
    23,495.62x = 417,790,489.47
  5. Step 5: Solve for x
    x = 417,790,489.47/23,495.62
  6. Step 6: Final answer
    x = 17,781.63

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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.