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Finding the Fourth Proportional to 7,603.84, 11,379.80 and 6,372.64

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Solution

The fourth proportional to 7,603.84, 11,379.80 and 6,372.64 is: 9,537.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603.84 : 11,379.80 = 6,372.64 : x
  2. Step 2: Convert to fraction form
    7,603.84/11,379.80 = 6,372.64/x
  3. Step 3: Cross multiply
    7,603.84x = 11,379.80 × 6,372.64
  4. Step 4: Simplify right side
    7,603.84x = 72,519,368.67
  5. Step 5: Solve for x
    x = 72,519,368.67/7,603.84
  6. Step 6: Final answer
    x = 9,537.20

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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.