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Finding the Fourth Proportional to 11,368.96, 15,692.16 and 7,650.88

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Solution

The fourth proportional to 11,368.96, 15,692.16 and 7,650.88 is: 10,560.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,368.96 : 15,692.16 = 7,650.88 : x
  2. Step 2: Convert to fraction form
    11,368.96/15,692.16 = 7,650.88/x
  3. Step 3: Cross multiply
    11,368.96x = 15,692.16 × 7,650.88
  4. Step 4: Simplify right side
    11,368.96x = 120,058,833.10
  5. Step 5: Solve for x
    x = 120,058,833.10/11,368.96
  6. Step 6: Final answer
    x = 10,560.23

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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.