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Finding the Fourth Proportional to 84,774.96, 116,991 and 47,051.28

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Solution

The fourth proportional to 84,774.96, 116,991 and 47,051.28 is: 64,931.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,774.96 : 116,991 = 47,051.28 : x
  2. Step 2: Convert to fraction form
    84,774.96/116,991 = 47,051.28/x
  3. Step 3: Cross multiply
    84,774.96x = 116,991 × 47,051.28
  4. Step 4: Simplify right side
    84,774.96x = 5,504,576,298.48
  5. Step 5: Solve for x
    x = 5,504,576,298.48/84,774.96
  6. Step 6: Final answer
    x = 64,931.63

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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.