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Finding the Fourth Proportional to 12,349.98, 18,520.74 and 4,952.52

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Solution

The fourth proportional to 12,349.98, 18,520.74 and 4,952.52 is: 7,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,349.98 : 18,520.74 = 4,952.52 : x
  2. Step 2: Convert to fraction form
    12,349.98/18,520.74 = 4,952.52/x
  3. Step 3: Cross multiply
    12,349.98x = 18,520.74 × 4,952.52
  4. Step 4: Simplify right side
    12,349.98x = 91,724,335.26
  5. Step 5: Solve for x
    x = 91,724,335.26/12,349.98
  6. Step 6: Final answer
    x = 7,427.08

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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.