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Finding the Fourth Proportional to 5,605.61, 7,738.85 and 3,368.04

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Solution

The fourth proportional to 5,605.61, 7,738.85 and 3,368.04 is: 4,649.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,605.61 : 7,738.85 = 3,368.04 : x
  2. Step 2: Convert to fraction form
    5,605.61/7,738.85 = 3,368.04/x
  3. Step 3: Cross multiply
    5,605.61x = 7,738.85 × 3,368.04
  4. Step 4: Simplify right side
    5,605.61x = 26,064,756.35
  5. Step 5: Solve for x
    x = 26,064,756.35/5,605.61
  6. Step 6: Final answer
    x = 4,649.76

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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.