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Finding the Fourth Proportional to 12,460.39, 18,702.88 and 6,616.98

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Solution

The fourth proportional to 12,460.39, 18,702.88 and 6,616.98 is: 9,932.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460.39 : 18,702.88 = 6,616.98 : x
  2. Step 2: Convert to fraction form
    12,460.39/18,702.88 = 6,616.98/x
  3. Step 3: Cross multiply
    12,460.39x = 18,702.88 × 6,616.98
  4. Step 4: Simplify right side
    12,460.39x = 123,756,566.36
  5. Step 5: Solve for x
    x = 123,756,566.36/12,460.39
  6. Step 6: Final answer
    x = 9,932.00

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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.