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Finding the Fourth Proportional to 10,663.70, 14,715.72 and 5,884.11

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Solution

The fourth proportional to 10,663.70, 14,715.72 and 5,884.11 is: 8,119.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,663.70 : 14,715.72 = 5,884.11 : x
  2. Step 2: Convert to fraction form
    10,663.70/14,715.72 = 5,884.11/x
  3. Step 3: Cross multiply
    10,663.70x = 14,715.72 × 5,884.11
  4. Step 4: Simplify right side
    10,663.70x = 86,588,915.21
  5. Step 5: Solve for x
    x = 86,588,915.21/10,663.70
  6. Step 6: Final answer
    x = 8,119.97

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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.