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Finding the Fourth Proportional to 77,833.49, 116,784.16 and 27,268.79

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Solution

The fourth proportional to 77,833.49, 116,784.16 and 27,268.79 is: 40,915.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,833.49 : 116,784.16 = 27,268.79 : x
  2. Step 2: Convert to fraction form
    77,833.49/116,784.16 = 27,268.79/x
  3. Step 3: Cross multiply
    77,833.49x = 116,784.16 × 27,268.79
  4. Step 4: Simplify right side
    77,833.49x = 3,184,563,221.03
  5. Step 5: Solve for x
    x = 3,184,563,221.03/77,833.49
  6. Step 6: Final answer
    x = 40,915.08

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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.