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Finding the Fourth Proportional to 66,239, 91,410.04 and 36,024.32

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Solution

The fourth proportional to 66,239, 91,410.04 and 36,024.32 is: 49,713.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,239 : 91,410.04 = 36,024.32 : x
  2. Step 2: Convert to fraction form
    66,239/91,410.04 = 36,024.32/x
  3. Step 3: Cross multiply
    66,239x = 91,410.04 × 36,024.32
  4. Step 4: Simplify right side
    66,239x = 3,292,984,532.17
  5. Step 5: Solve for x
    x = 3,292,984,532.17/66,239
  6. Step 6: Final answer
    x = 49,713.68

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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.