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Finding the Fourth Proportional to 9,603.63, 13,253.01 and 5,187.63

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Solution

The fourth proportional to 9,603.63, 13,253.01 and 5,187.63 is: 7,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,603.63 : 13,253.01 = 5,187.63 : x
  2. Step 2: Convert to fraction form
    9,603.63/13,253.01 = 5,187.63/x
  3. Step 3: Cross multiply
    9,603.63x = 13,253.01 × 5,187.63
  4. Step 4: Simplify right side
    9,603.63x = 68,751,620.06
  5. Step 5: Solve for x
    x = 68,751,620.06/9,603.63
  6. Step 6: Final answer
    x = 7,158.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.