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Finding the Fourth Proportional to 9,800.48, 14,675.88 and 8,423.12

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Solution

The fourth proportional to 9,800.48, 14,675.88 and 8,423.12 is: 12,613.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,800.48 : 14,675.88 = 8,423.12 : x
  2. Step 2: Convert to fraction form
    9,800.48/14,675.88 = 8,423.12/x
  3. Step 3: Cross multiply
    9,800.48x = 14,675.88 × 8,423.12
  4. Step 4: Simplify right side
    9,800.48x = 123,616,698.35
  5. Step 5: Solve for x
    x = 123,616,698.35/9,800.48
  6. Step 6: Final answer
    x = 12,613.33

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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.