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Finding the Fourth Proportional to 32,531.76, 48,840.84 and 20,850.48

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Solution

The fourth proportional to 32,531.76, 48,840.84 and 20,850.48 is: 31,303.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,531.76 : 48,840.84 = 20,850.48 : x
  2. Step 2: Convert to fraction form
    32,531.76/48,840.84 = 20,850.48/x
  3. Step 3: Cross multiply
    32,531.76x = 48,840.84 × 20,850.48
  4. Step 4: Simplify right side
    32,531.76x = 1,018,354,957.60
  5. Step 5: Solve for x
    x = 1,018,354,957.60/32,531.76
  6. Step 6: Final answer
    x = 31,303.41

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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.