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Finding the Fourth Proportional to 19,065.87, 28,598.67 and 5,214.87

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Solution

The fourth proportional to 19,065.87, 28,598.67 and 5,214.87 is: 7,822.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,065.87 : 28,598.67 = 5,214.87 : x
  2. Step 2: Convert to fraction form
    19,065.87/28,598.67 = 5,214.87/x
  3. Step 3: Cross multiply
    19,065.87x = 28,598.67 × 5,214.87
  4. Step 4: Simplify right side
    19,065.87x = 149,138,346.22
  5. Step 5: Solve for x
    x = 149,138,346.22/19,065.87
  6. Step 6: Final answer
    x = 7,822.27

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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.