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Finding the Fourth Proportional to 11,699.80, 17,541.42 and 5,852.20

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Solution

The fourth proportional to 11,699.80, 17,541.42 and 5,852.20 is: 8,774.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,699.80 : 17,541.42 = 5,852.20 : x
  2. Step 2: Convert to fraction form
    11,699.80/17,541.42 = 5,852.20/x
  3. Step 3: Cross multiply
    11,699.80x = 17,541.42 × 5,852.20
  4. Step 4: Simplify right side
    11,699.80x = 102,655,898.12
  5. Step 5: Solve for x
    x = 102,655,898.12/11,699.80
  6. Step 6: Final answer
    x = 8,774.16

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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.