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Finding the Fourth Proportional to 32,443.20, 48,693.60 and 28,065.60

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Solution

The fourth proportional to 32,443.20, 48,693.60 and 28,065.60 is: 42,123.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,443.20 : 48,693.60 = 28,065.60 : x
  2. Step 2: Convert to fraction form
    32,443.20/48,693.60 = 28,065.60/x
  3. Step 3: Cross multiply
    32,443.20x = 48,693.60 × 28,065.60
  4. Step 4: Simplify right side
    32,443.20x = 1,366,615,100.16
  5. Step 5: Solve for x
    x = 1,366,615,100.16/32,443.20
  6. Step 6: Final answer
    x = 42,123.31

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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.