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Finding the Fourth Proportional to 8,486.30, 11,702.96 and 5,082.77

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Solution

The fourth proportional to 8,486.30, 11,702.96 and 5,082.77 is: 7,009.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.30 : 11,702.96 = 5,082.77 : x
  2. Step 2: Convert to fraction form
    8,486.30/11,702.96 = 5,082.77/x
  3. Step 3: Cross multiply
    8,486.30x = 11,702.96 × 5,082.77
  4. Step 4: Simplify right side
    8,486.30x = 59,483,453.63
  5. Step 5: Solve for x
    x = 59,483,453.63/8,486.30
  6. Step 6: Final answer
    x = 7,009.35

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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.