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Finding the Fourth Proportional to 19,073.60, 28,610.40 and 17,998.40

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Solution

The fourth proportional to 19,073.60, 28,610.40 and 17,998.40 is: 26,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,073.60 : 28,610.40 = 17,998.40 : x
  2. Step 2: Convert to fraction form
    19,073.60/28,610.40 = 17,998.40/x
  3. Step 3: Cross multiply
    19,073.60x = 28,610.40 × 17,998.40
  4. Step 4: Simplify right side
    19,073.60x = 514,941,423.36
  5. Step 5: Solve for x
    x = 514,941,423.36/19,073.60
  6. Step 6: Final answer
    x = 26,997.60

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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.