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Finding the Fourth Proportional to 19,999.52, 30,030.11 and 16,919.99

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Solution

The fourth proportional to 19,999.52, 30,030.11 and 16,919.99 is: 25,406.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,999.52 : 30,030.11 = 16,919.99 : x
  2. Step 2: Convert to fraction form
    19,999.52/30,030.11 = 16,919.99/x
  3. Step 3: Cross multiply
    19,999.52x = 30,030.11 × 16,919.99
  4. Step 4: Simplify right side
    19,999.52x = 508,108,926.15
  5. Step 5: Solve for x
    x = 508,108,926.15/19,999.52
  6. Step 6: Final answer
    x = 25,406.06

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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.