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Finding the Fourth Proportional to 10,995.99, 15,174.54 and 6,522

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Solution

The fourth proportional to 10,995.99, 15,174.54 and 6,522 is: 9,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.99 : 15,174.54 = 6,522 : x
  2. Step 2: Convert to fraction form
    10,995.99/15,174.54 = 6,522/x
  3. Step 3: Cross multiply
    10,995.99x = 15,174.54 × 6,522
  4. Step 4: Simplify right side
    10,995.99x = 98,968,349.88
  5. Step 5: Solve for x
    x = 98,968,349.88/10,995.99
  6. Step 6: Final answer
    x = 9,000.40

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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.