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Finding the Fourth Proportional to 11,406.80, 17,102.10 and 4,384.10

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Solution

The fourth proportional to 11,406.80, 17,102.10 and 4,384.10 is: 6,573.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.80 : 17,102.10 = 4,384.10 : x
  2. Step 2: Convert to fraction form
    11,406.80/17,102.10 = 4,384.10/x
  3. Step 3: Cross multiply
    11,406.80x = 17,102.10 × 4,384.10
  4. Step 4: Simplify right side
    11,406.80x = 74,977,316.61
  5. Step 5: Solve for x
    x = 74,977,316.61/11,406.80
  6. Step 6: Final answer
    x = 6,573.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.