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Finding the Fourth Proportional to 66,517.39, 91,831.69 and 46,129.08

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Solution

The fourth proportional to 66,517.39, 91,831.69 and 46,129.08 is: 63,684.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,517.39 : 91,831.69 = 46,129.08 : x
  2. Step 2: Convert to fraction form
    66,517.39/91,831.69 = 46,129.08/x
  3. Step 3: Cross multiply
    66,517.39x = 91,831.69 × 46,129.08
  4. Step 4: Simplify right side
    66,517.39x = 4,236,111,374.55
  5. Step 5: Solve for x
    x = 4,236,111,374.55/66,517.39
  6. Step 6: Final answer
    x = 63,684.27

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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.