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Finding the Fourth Proportional to 13,063.60, 18,027.60 and 7,398.32

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Solution

The fourth proportional to 13,063.60, 18,027.60 and 7,398.32 is: 10,209.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,063.60 : 18,027.60 = 7,398.32 : x
  2. Step 2: Convert to fraction form
    13,063.60/18,027.60 = 7,398.32/x
  3. Step 3: Cross multiply
    13,063.60x = 18,027.60 × 7,398.32
  4. Step 4: Simplify right side
    13,063.60x = 133,373,953.63
  5. Step 5: Solve for x
    x = 133,373,953.63/13,063.60
  6. Step 6: Final answer
    x = 10,209.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.