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Finding the Fourth Proportional to 9,603.66, 14,390.91 and 7,126.89

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Solution

The fourth proportional to 9,603.66, 14,390.91 and 7,126.89 is: 10,679.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,603.66 : 14,390.91 = 7,126.89 : x
  2. Step 2: Convert to fraction form
    9,603.66/14,390.91 = 7,126.89/x
  3. Step 3: Cross multiply
    9,603.66x = 14,390.91 × 7,126.89
  4. Step 4: Simplify right side
    9,603.66x = 102,562,432.57
  5. Step 5: Solve for x
    x = 102,562,432.57/9,603.66
  6. Step 6: Final answer
    x = 10,679.52

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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.