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Finding the Fourth Proportional to 66,074.94, 91,259.10 and 43,514.78

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Solution

The fourth proportional to 66,074.94, 91,259.10 and 43,514.78 is: 60,100.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,074.94 : 91,259.10 = 43,514.78 : x
  2. Step 2: Convert to fraction form
    66,074.94/91,259.10 = 43,514.78/x
  3. Step 3: Cross multiply
    66,074.94x = 91,259.10 × 43,514.78
  4. Step 4: Simplify right side
    66,074.94x = 3,971,119,659.50
  5. Step 5: Solve for x
    x = 3,971,119,659.50/66,074.94
  6. Step 6: Final answer
    x = 60,100.24

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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.