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Finding the Fourth Proportional to 5,554.90, 7,650.21 and 5,433.94

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Solution

The fourth proportional to 5,554.90, 7,650.21 and 5,433.94 is: 7,483.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,554.90 : 7,650.21 = 5,433.94 : x
  2. Step 2: Convert to fraction form
    5,554.90/7,650.21 = 5,433.94/x
  3. Step 3: Cross multiply
    5,554.90x = 7,650.21 × 5,433.94
  4. Step 4: Simplify right side
    5,554.90x = 41,570,782.13
  5. Step 5: Solve for x
    x = 41,570,782.13/5,554.90
  6. Step 6: Final answer
    x = 7,483.62

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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.