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Finding the Fourth Proportional to 26,603.14, 39,900.95 and 7,885.16

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Solution

The fourth proportional to 26,603.14, 39,900.95 and 7,885.16 is: 11,826.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,603.14 : 39,900.95 = 7,885.16 : x
  2. Step 2: Convert to fraction form
    26,603.14/39,900.95 = 7,885.16/x
  3. Step 3: Cross multiply
    26,603.14x = 39,900.95 × 7,885.16
  4. Step 4: Simplify right side
    26,603.14x = 314,625,374.90
  5. Step 5: Solve for x
    x = 314,625,374.90/26,603.14
  6. Step 6: Final answer
    x = 11,826.63

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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.