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Finding the Fourth Proportional to 9,363.20, 14,044.80 and 8,499.20

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Solution

The fourth proportional to 9,363.20, 14,044.80 and 8,499.20 is: 12,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.20 : 14,044.80 = 8,499.20 : x
  2. Step 2: Convert to fraction form
    9,363.20/14,044.80 = 8,499.20/x
  3. Step 3: Cross multiply
    9,363.20x = 14,044.80 × 8,499.20
  4. Step 4: Simplify right side
    9,363.20x = 119,369,564.16
  5. Step 5: Solve for x
    x = 119,369,564.16/9,363.20
  6. Step 6: Final answer
    x = 12,748.80

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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.