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Finding the Fourth Proportional to 7,903.56, 11,853.52 and 3,518.63

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Solution

The fourth proportional to 7,903.56, 11,853.52 and 3,518.63 is: 5,277.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.56 : 11,853.52 = 3,518.63 : x
  2. Step 2: Convert to fraction form
    7,903.56/11,853.52 = 3,518.63/x
  3. Step 3: Cross multiply
    7,903.56x = 11,853.52 × 3,518.63
  4. Step 4: Simplify right side
    7,903.56x = 41,708,083.01
  5. Step 5: Solve for x
    x = 41,708,083.01/7,903.56
  6. Step 6: Final answer
    x = 5,277.13

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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.