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Finding the Fourth Proportional to 61,200.90, 91,801.35 and 34,908.30

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Solution

The fourth proportional to 61,200.90, 91,801.35 and 34,908.30 is: 52,362.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,200.90 : 91,801.35 = 34,908.30 : x
  2. Step 2: Convert to fraction form
    61,200.90/91,801.35 = 34,908.30/x
  3. Step 3: Cross multiply
    61,200.90x = 91,801.35 × 34,908.30
  4. Step 4: Simplify right side
    61,200.90x = 3,204,629,066.21
  5. Step 5: Solve for x
    x = 3,204,629,066.21/61,200.90
  6. Step 6: Final answer
    x = 52,362.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.