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Finding the Fourth Proportional to 32,530.60, 48,801.30 and 12,809.80

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Solution

The fourth proportional to 32,530.60, 48,801.30 and 12,809.80 is: 19,216.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,530.60 : 48,801.30 = 12,809.80 : x
  2. Step 2: Convert to fraction form
    32,530.60/48,801.30 = 12,809.80/x
  3. Step 3: Cross multiply
    32,530.60x = 48,801.30 × 12,809.80
  4. Step 4: Simplify right side
    32,530.60x = 625,134,892.74
  5. Step 5: Solve for x
    x = 625,134,892.74/32,530.60
  6. Step 6: Final answer
    x = 19,216.83

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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.