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Finding the Fourth Proportional to 9,603.80, 14,405.70 and 5,861.60

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Solution

The fourth proportional to 9,603.80, 14,405.70 and 5,861.60 is: 8,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,603.80 : 14,405.70 = 5,861.60 : x
  2. Step 2: Convert to fraction form
    9,603.80/14,405.70 = 5,861.60/x
  3. Step 3: Cross multiply
    9,603.80x = 14,405.70 × 5,861.60
  4. Step 4: Simplify right side
    9,603.80x = 84,440,451.12
  5. Step 5: Solve for x
    x = 84,440,451.12/9,603.80
  6. Step 6: Final answer
    x = 8,792.40

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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.