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Finding the Fourth Proportional to 66,634.89, 91,928.64 and 46,503.45

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Solution

The fourth proportional to 66,634.89, 91,928.64 and 46,503.45 is: 64,155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,634.89 : 91,928.64 = 46,503.45 : x
  2. Step 2: Convert to fraction form
    66,634.89/91,928.64 = 46,503.45/x
  3. Step 3: Cross multiply
    66,634.89x = 91,928.64 × 46,503.45
  4. Step 4: Simplify right side
    66,634.89x = 4,274,998,913.81
  5. Step 5: Solve for x
    x = 4,274,998,913.81/66,634.89
  6. Step 6: Final answer
    x = 64,155.56

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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.