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Finding the Fourth Proportional to 66,194.71, 91,349.61 and 35,980.01

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Solution

The fourth proportional to 66,194.71, 91,349.61 and 35,980.01 is: 49,652.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,194.71 : 91,349.61 = 35,980.01 : x
  2. Step 2: Convert to fraction form
    66,194.71/91,349.61 = 35,980.01/x
  3. Step 3: Cross multiply
    66,194.71x = 91,349.61 × 35,980.01
  4. Step 4: Simplify right side
    66,194.71x = 3,286,759,881.30
  5. Step 5: Solve for x
    x = 3,286,759,881.30/66,194.71
  6. Step 6: Final answer
    x = 49,652.91

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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.