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Finding the Fourth Proportional to 28,625.44, 42,937.64 and 7,848.92

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Solution

The fourth proportional to 28,625.44, 42,937.64 and 7,848.92 is: 11,773.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,625.44 : 42,937.64 = 7,848.92 : x
  2. Step 2: Convert to fraction form
    28,625.44/42,937.64 = 7,848.92/x
  3. Step 3: Cross multiply
    28,625.44x = 42,937.64 × 7,848.92
  4. Step 4: Simplify right side
    28,625.44x = 337,014,101.35
  5. Step 5: Solve for x
    x = 337,014,101.35/28,625.44
  6. Step 6: Final answer
    x = 11,773.24

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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.