Home / 32,385.20-48,579-11,321.12

Finding the Fourth Proportional to 32,385.20, 48,579 and 11,321.12

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Solution

The fourth proportional to 32,385.20, 48,579 and 11,321.12 is: 16,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,385.20 : 48,579 = 11,321.12 : x
  2. Step 2: Convert to fraction form
    32,385.20/48,579 = 11,321.12/x
  3. Step 3: Cross multiply
    32,385.20x = 48,579 × 11,321.12
  4. Step 4: Simplify right side
    32,385.20x = 549,968,688.48
  5. Step 5: Solve for x
    x = 549,968,688.48/32,385.20
  6. Step 6: Final answer
    x = 16,982.10

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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.