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Finding the Fourth Proportional to 18,797.08, 28,193.44 and 4,947.16

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Solution

The fourth proportional to 18,797.08, 28,193.44 and 4,947.16 is: 7,420.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.08 : 28,193.44 = 4,947.16 : x
  2. Step 2: Convert to fraction form
    18,797.08/28,193.44 = 4,947.16/x
  3. Step 3: Cross multiply
    18,797.08x = 28,193.44 × 4,947.16
  4. Step 4: Simplify right side
    18,797.08x = 139,477,458.63
  5. Step 5: Solve for x
    x = 139,477,458.63/18,797.08
  6. Step 6: Final answer
    x = 7,420.17

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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.