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Finding the Fourth Proportional to 19,298.01, 28,944.08 and 5,259.14

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Solution

The fourth proportional to 19,298.01, 28,944.08 and 5,259.14 is: 7,887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,298.01 : 28,944.08 = 5,259.14 : x
  2. Step 2: Convert to fraction form
    19,298.01/28,944.08 = 5,259.14/x
  3. Step 3: Cross multiply
    19,298.01x = 28,944.08 × 5,259.14
  4. Step 4: Simplify right side
    19,298.01x = 152,220,797.88
  5. Step 5: Solve for x
    x = 152,220,797.88/19,298.01
  6. Step 6: Final answer
    x = 7,887.90

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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.