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Finding the Fourth Proportional to 32,398.36, 48,578.40 and 12,653.80

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Solution

The fourth proportional to 32,398.36, 48,578.40 and 12,653.80 is: 18,973.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,398.36 : 48,578.40 = 12,653.80 : x
  2. Step 2: Convert to fraction form
    32,398.36/48,578.40 = 12,653.80/x
  3. Step 3: Cross multiply
    32,398.36x = 48,578.40 × 12,653.80
  4. Step 4: Simplify right side
    32,398.36x = 614,701,357.92
  5. Step 5: Solve for x
    x = 614,701,357.92/32,398.36
  6. Step 6: Final answer
    x = 18,973.22

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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.