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Finding the Fourth Proportional to 7,023.61, 9,692.86 and 4,039.44

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Solution

The fourth proportional to 7,023.61, 9,692.86 and 4,039.44 is: 5,574.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,023.61 : 9,692.86 = 4,039.44 : x
  2. Step 2: Convert to fraction form
    7,023.61/9,692.86 = 4,039.44/x
  3. Step 3: Cross multiply
    7,023.61x = 9,692.86 × 4,039.44
  4. Step 4: Simplify right side
    7,023.61x = 39,153,731.45
  5. Step 5: Solve for x
    x = 39,153,731.45/7,023.61
  6. Step 6: Final answer
    x = 5,574.59

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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.