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Finding the Fourth Proportional to 38,802.52, 58,205.22 and 12,507.64

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Solution

The fourth proportional to 38,802.52, 58,205.22 and 12,507.64 is: 18,761.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,802.52 : 58,205.22 = 12,507.64 : x
  2. Step 2: Convert to fraction form
    38,802.52/58,205.22 = 12,507.64/x
  3. Step 3: Cross multiply
    38,802.52x = 58,205.22 × 12,507.64
  4. Step 4: Simplify right side
    38,802.52x = 728,009,937.88
  5. Step 5: Solve for x
    x = 728,009,937.88/38,802.52
  6. Step 6: Final answer
    x = 18,761.92

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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.