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Finding the Fourth Proportional to 32,665.60, 48,998.40 and 18,803.20

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Solution

The fourth proportional to 32,665.60, 48,998.40 and 18,803.20 is: 28,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,665.60 : 48,998.40 = 18,803.20 : x
  2. Step 2: Convert to fraction form
    32,665.60/48,998.40 = 18,803.20/x
  3. Step 3: Cross multiply
    32,665.60x = 48,998.40 × 18,803.20
  4. Step 4: Simplify right side
    32,665.60x = 921,326,714.88
  5. Step 5: Solve for x
    x = 921,326,714.88/32,665.60
  6. Step 6: Final answer
    x = 28,204.80

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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.