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Finding the Fourth Proportional to 61,739.84, 85,200.90 and 33,445.64

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Solution

The fourth proportional to 61,739.84, 85,200.90 and 33,445.64 is: 46,154.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,739.84 : 85,200.90 = 33,445.64 : x
  2. Step 2: Convert to fraction form
    61,739.84/85,200.90 = 33,445.64/x
  3. Step 3: Cross multiply
    61,739.84x = 85,200.90 × 33,445.64
  4. Step 4: Simplify right side
    61,739.84x = 2,849,598,629.08
  5. Step 5: Solve for x
    x = 2,849,598,629.08/61,739.84
  6. Step 6: Final answer
    x = 46,154.94

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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.