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Finding the Fourth Proportional to 10,668.64, 14,722.98 and 5,953.60

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Solution

The fourth proportional to 10,668.64, 14,722.98 and 5,953.60 is: 8,216.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,668.64 : 14,722.98 = 5,953.60 : x
  2. Step 2: Convert to fraction form
    10,668.64/14,722.98 = 5,953.60/x
  3. Step 3: Cross multiply
    10,668.64x = 14,722.98 × 5,953.60
  4. Step 4: Simplify right side
    10,668.64x = 87,654,733.73
  5. Step 5: Solve for x
    x = 87,654,733.73/10,668.64
  6. Step 6: Final answer
    x = 8,216.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.