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Finding the Fourth Proportional to 66,210.66, 91,369.61 and 35,996.74

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Solution

The fourth proportional to 66,210.66, 91,369.61 and 35,996.74 is: 49,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,210.66 : 91,369.61 = 35,996.74 : x
  2. Step 2: Convert to fraction form
    66,210.66/91,369.61 = 35,996.74/x
  3. Step 3: Cross multiply
    66,210.66x = 91,369.61 × 35,996.74
  4. Step 4: Simplify right side
    66,210.66x = 3,289,008,095.07
  5. Step 5: Solve for x
    x = 3,289,008,095.07/66,210.66
  6. Step 6: Final answer
    x = 49,674.90

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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.