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Finding the Fourth Proportional to 12,235.52, 18,342.88 and 4,845.18

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Solution

The fourth proportional to 12,235.52, 18,342.88 and 4,845.18 is: 7,263.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.52 : 18,342.88 = 4,845.18 : x
  2. Step 2: Convert to fraction form
    12,235.52/18,342.88 = 4,845.18/x
  3. Step 3: Cross multiply
    12,235.52x = 18,342.88 × 4,845.18
  4. Step 4: Simplify right side
    12,235.52x = 88,874,555.32
  5. Step 5: Solve for x
    x = 88,874,555.32/12,235.52
  6. Step 6: Final answer
    x = 7,263.65

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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.