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Finding the Fourth Proportional to 32,502.88, 48,754.32 and 7,878.88

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Solution

The fourth proportional to 32,502.88, 48,754.32 and 7,878.88 is: 11,818.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,502.88 : 48,754.32 = 7,878.88 : x
  2. Step 2: Convert to fraction form
    32,502.88/48,754.32 = 7,878.88/x
  3. Step 3: Cross multiply
    32,502.88x = 48,754.32 × 7,878.88
  4. Step 4: Simplify right side
    32,502.88x = 384,129,192.99
  5. Step 5: Solve for x
    x = 384,129,192.99/32,502.88
  6. Step 6: Final answer
    x = 11,818.31

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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.