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Finding the Fourth Proportional to 32,388.40, 48,582.59 and 12,653.11

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Solution

The fourth proportional to 32,388.40, 48,582.59 and 12,653.11 is: 18,979.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,388.40 : 48,582.59 = 12,653.11 : x
  2. Step 2: Convert to fraction form
    32,388.40/48,582.59 = 12,653.11/x
  3. Step 3: Cross multiply
    32,388.40x = 48,582.59 × 12,653.11
  4. Step 4: Simplify right side
    32,388.40x = 614,720,855.35
  5. Step 5: Solve for x
    x = 614,720,855.35/32,388.40
  6. Step 6: Final answer
    x = 18,979.66

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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.