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Finding the Fourth Proportional to 58,684.80, 80,969.40 and 34,791.60

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Solution

The fourth proportional to 58,684.80, 80,969.40 and 34,791.60 is: 48,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,684.80 : 80,969.40 = 34,791.60 : x
  2. Step 2: Convert to fraction form
    58,684.80/80,969.40 = 34,791.60/x
  3. Step 3: Cross multiply
    58,684.80x = 80,969.40 × 34,791.60
  4. Step 4: Simplify right side
    58,684.80x = 2,817,054,977.04
  5. Step 5: Solve for x
    x = 2,817,054,977.04/58,684.80
  6. Step 6: Final answer
    x = 48,003.15

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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.