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Finding the Fourth Proportional to 32,496.15, 48,737.21 and 18,978.30

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Solution

The fourth proportional to 32,496.15, 48,737.21 and 18,978.30 is: 28,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,496.15 : 48,737.21 = 18,978.30 : x
  2. Step 2: Convert to fraction form
    32,496.15/48,737.21 = 18,978.30/x
  3. Step 3: Cross multiply
    32,496.15x = 48,737.21 × 18,978.30
  4. Step 4: Simplify right side
    32,496.15x = 924,949,297.65
  5. Step 5: Solve for x
    x = 924,949,297.65/32,496.15
  6. Step 6: Final answer
    x = 28,463.35

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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.