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Finding the Fourth Proportional to 12,235.52, 18,353.30 and 4,444.32

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Solution

The fourth proportional to 12,235.52, 18,353.30 and 4,444.32 is: 6,666.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.52 : 18,353.30 = 4,444.32 : x
  2. Step 2: Convert to fraction form
    12,235.52/18,353.30 = 4,444.32/x
  3. Step 3: Cross multiply
    12,235.52x = 18,353.30 × 4,444.32
  4. Step 4: Simplify right side
    12,235.52x = 81,567,938.26
  5. Step 5: Solve for x
    x = 81,567,938.26/12,235.52
  6. Step 6: Final answer
    x = 6,666.49

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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.