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Finding the Fourth Proportional to 53,645.60, 80,468.40 and 14,206.70

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Solution

The fourth proportional to 53,645.60, 80,468.40 and 14,206.70 is: 21,310.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,645.60 : 80,468.40 = 14,206.70 : x
  2. Step 2: Convert to fraction form
    53,645.60/80,468.40 = 14,206.70/x
  3. Step 3: Cross multiply
    53,645.60x = 80,468.40 × 14,206.70
  4. Step 4: Simplify right side
    53,645.60x = 1,143,190,418.28
  5. Step 5: Solve for x
    x = 1,143,190,418.28/53,645.60
  6. Step 6: Final answer
    x = 21,310.05

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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.