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Finding the Fourth Proportional to 9,668.55, 14,387.01 and 9,635.76

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Solution

The fourth proportional to 9,668.55, 14,387.01 and 9,635.76 is: 14,338.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,668.55 : 14,387.01 = 9,635.76 : x
  2. Step 2: Convert to fraction form
    9,668.55/14,387.01 = 9,635.76/x
  3. Step 3: Cross multiply
    9,668.55x = 14,387.01 × 9,635.76
  4. Step 4: Simplify right side
    9,668.55x = 138,629,775.48
  5. Step 5: Solve for x
    x = 138,629,775.48/9,668.55
  6. Step 6: Final answer
    x = 14,338.22

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Half scale
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Double scale
Find fourth proportional to 9,669.55, 14,388.50 and 9,636.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.