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Finding the Fourth Proportional to 66,423.22, 91,662.69 and 36,615.22

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Solution

The fourth proportional to 66,423.22, 91,662.69 and 36,615.22 is: 50,528.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,423.22 : 91,662.69 = 36,615.22 : x
  2. Step 2: Convert to fraction form
    66,423.22/91,662.69 = 36,615.22/x
  3. Step 3: Cross multiply
    66,423.22x = 91,662.69 × 36,615.22
  4. Step 4: Simplify right side
    66,423.22x = 3,356,249,560.14
  5. Step 5: Solve for x
    x = 3,356,249,560.14/66,423.22
  6. Step 6: Final answer
    x = 50,528.26

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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.