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Finding the Fourth Proportional to 26,642.08, 39,952.72 and 9,993

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Solution

The fourth proportional to 26,642.08, 39,952.72 and 9,993 is: 14,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,642.08 : 39,952.72 = 9,993 : x
  2. Step 2: Convert to fraction form
    26,642.08/39,952.72 = 9,993/x
  3. Step 3: Cross multiply
    26,642.08x = 39,952.72 × 9,993
  4. Step 4: Simplify right side
    26,642.08x = 399,247,530.96
  5. Step 5: Solve for x
    x = 399,247,530.96/26,642.08
  6. Step 6: Final answer
    x = 14,985.60

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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.