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Finding the Fourth Proportional to 9,861.40, 14,792.10 and 9,472.60

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Solution

The fourth proportional to 9,861.40, 14,792.10 and 9,472.60 is: 14,208.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861.40 : 14,792.10 = 9,472.60 : x
  2. Step 2: Convert to fraction form
    9,861.40/14,792.10 = 9,472.60/x
  3. Step 3: Cross multiply
    9,861.40x = 14,792.10 × 9,472.60
  4. Step 4: Simplify right side
    9,861.40x = 140,119,646.46
  5. Step 5: Solve for x
    x = 140,119,646.46/9,861.40
  6. Step 6: Final answer
    x = 14,208.90

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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.