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Finding the Fourth Proportional to 32,415.88, 48,644.31 and 12,693.91

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Solution

The fourth proportional to 32,415.88, 48,644.31 and 12,693.91 is: 19,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,415.88 : 48,644.31 = 12,693.91 : x
  2. Step 2: Convert to fraction form
    32,415.88/48,644.31 = 12,693.91/x
  3. Step 3: Cross multiply
    32,415.88x = 48,644.31 × 12,693.91
  4. Step 4: Simplify right side
    32,415.88x = 617,486,493.15
  5. Step 5: Solve for x
    x = 617,486,493.15/32,415.88
  6. Step 6: Final answer
    x = 19,048.89

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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.