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Finding the Fourth Proportional to 32,921.60, 49,398.12 and 15,388.88

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Solution

The fourth proportional to 32,921.60, 49,398.12 and 15,388.88 is: 23,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,921.60 : 49,398.12 = 15,388.88 : x
  2. Step 2: Convert to fraction form
    32,921.60/49,398.12 = 15,388.88/x
  3. Step 3: Cross multiply
    32,921.60x = 49,398.12 × 15,388.88
  4. Step 4: Simplify right side
    32,921.60x = 760,181,740.91
  5. Step 5: Solve for x
    x = 760,181,740.91/32,921.60
  6. Step 6: Final answer
    x = 23,090.67

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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.