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Finding the Fourth Proportional to 18,445.80, 25,455.78 and 10,063.08

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Solution

The fourth proportional to 18,445.80, 25,455.78 and 10,063.08 is: 13,887.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.80 : 25,455.78 = 10,063.08 : x
  2. Step 2: Convert to fraction form
    18,445.80/25,455.78 = 10,063.08/x
  3. Step 3: Cross multiply
    18,445.80x = 25,455.78 × 10,063.08
  4. Step 4: Simplify right side
    18,445.80x = 256,163,550.60
  5. Step 5: Solve for x
    x = 256,163,550.60/18,445.80
  6. Step 6: Final answer
    x = 13,887.36

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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.