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Finding the Fourth Proportional to 9,885.08, 13,641.08 and 5,903.83

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Solution

The fourth proportional to 9,885.08, 13,641.08 and 5,903.83 is: 8,147.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,885.08 : 13,641.08 = 5,903.83 : x
  2. Step 2: Convert to fraction form
    9,885.08/13,641.08 = 5,903.83/x
  3. Step 3: Cross multiply
    9,885.08x = 13,641.08 × 5,903.83
  4. Step 4: Simplify right side
    9,885.08x = 80,534,597.99
  5. Step 5: Solve for x
    x = 80,534,597.99/9,885.08
  6. Step 6: Final answer
    x = 8,147.08

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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.