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Finding the Fourth Proportional to 10,964.10, 15,330.30 and 10,964.10

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Solution

The fourth proportional to 10,964.10, 15,330.30 and 10,964.10 is: 15,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,964.10 : 15,330.30 = 10,964.10 : x
  2. Step 2: Convert to fraction form
    10,964.10/15,330.30 = 10,964.10/x
  3. Step 3: Cross multiply
    10,964.10x = 15,330.30 × 10,964.10
  4. Step 4: Simplify right side
    10,964.10x = 168,082,942.23
  5. Step 5: Solve for x
    x = 168,082,942.23/10,964.10
  6. Step 6: Final answer
    x = 15,330.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.