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Finding the Fourth Proportional to 5,628.66, 8,461.22 and 5,222.85

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Solution

The fourth proportional to 5,628.66, 8,461.22 and 5,222.85 is: 7,851.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.66 : 8,461.22 = 5,222.85 : x
  2. Step 2: Convert to fraction form
    5,628.66/8,461.22 = 5,222.85/x
  3. Step 3: Cross multiply
    5,628.66x = 8,461.22 × 5,222.85
  4. Step 4: Simplify right side
    5,628.66x = 44,191,656.76
  5. Step 5: Solve for x
    x = 44,191,656.76/5,628.66
  6. Step 6: Final answer
    x = 7,851.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.