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Finding the Fourth Proportional to 7,603.82, 11,407.08 and 3,445.76

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Solution

The fourth proportional to 7,603.82, 11,407.08 and 3,445.76 is: 5,169.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603.82 : 11,407.08 = 3,445.76 : x
  2. Step 2: Convert to fraction form
    7,603.82/11,407.08 = 3,445.76/x
  3. Step 3: Cross multiply
    7,603.82x = 11,407.08 × 3,445.76
  4. Step 4: Simplify right side
    7,603.82x = 39,306,059.98
  5. Step 5: Solve for x
    x = 39,306,059.98/7,603.82
  6. Step 6: Final answer
    x = 5,169.25

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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.