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Finding the Fourth Proportional to 43,097.80, 64,648.86 and 15,395.80

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Solution

The fourth proportional to 43,097.80, 64,648.86 and 15,395.80 is: 23,094.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,097.80 : 64,648.86 = 15,395.80 : x
  2. Step 2: Convert to fraction form
    43,097.80/64,648.86 = 15,395.80/x
  3. Step 3: Cross multiply
    43,097.80x = 64,648.86 × 15,395.80
  4. Step 4: Simplify right side
    43,097.80x = 995,320,918.79
  5. Step 5: Solve for x
    x = 995,320,918.79/43,097.80
  6. Step 6: Final answer
    x = 23,094.47

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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.