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Finding the Fourth Proportional to 42,848.64, 64,027.32 and 32,660.64

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Solution

The fourth proportional to 42,848.64, 64,027.32 and 32,660.64 is: 48,803.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,848.64 : 64,027.32 = 32,660.64 : x
  2. Step 2: Convert to fraction form
    42,848.64/64,027.32 = 32,660.64/x
  3. Step 3: Cross multiply
    42,848.64x = 64,027.32 × 32,660.64
  4. Step 4: Simplify right side
    42,848.64x = 2,091,173,248.68
  5. Step 5: Solve for x
    x = 2,091,173,248.68/42,848.64
  6. Step 6: Final answer
    x = 48,803.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.