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Finding the Fourth Proportional to 84,765.44, 116,974.08 and 47,038.72

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Solution

The fourth proportional to 84,765.44, 116,974.08 and 47,038.72 is: 64,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,765.44 : 116,974.08 = 47,038.72 : x
  2. Step 2: Convert to fraction form
    84,765.44/116,974.08 = 47,038.72/x
  3. Step 3: Cross multiply
    84,765.44x = 116,974.08 × 47,038.72
  4. Step 4: Simplify right side
    84,765.44x = 5,502,310,996.38
  5. Step 5: Solve for x
    x = 5,502,310,996.38/84,765.44
  6. Step 6: Final answer
    x = 64,912.20

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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.