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Finding the Fourth Proportional to 19,911.13, 29,866.76 and 6,060.13

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Solution

The fourth proportional to 19,911.13, 29,866.76 and 6,060.13 is: 9,090.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.13 : 29,866.76 = 6,060.13 : x
  2. Step 2: Convert to fraction form
    19,911.13/29,866.76 = 6,060.13/x
  3. Step 3: Cross multiply
    19,911.13x = 29,866.76 × 6,060.13
  4. Step 4: Simplify right side
    19,911.13x = 180,996,448.28
  5. Step 5: Solve for x
    x = 180,996,448.28/19,911.13
  6. Step 6: Final answer
    x = 9,090.21

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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.