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Finding the Fourth Proportional to 5,666.63, 8,478.57 and 5,091.11

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Solution

The fourth proportional to 5,666.63, 8,478.57 and 5,091.11 is: 7,617.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666.63 : 8,478.57 = 5,091.11 : x
  2. Step 2: Convert to fraction form
    5,666.63/8,478.57 = 5,091.11/x
  3. Step 3: Cross multiply
    5,666.63x = 8,478.57 × 5,091.11
  4. Step 4: Simplify right side
    5,666.63x = 43,165,334.62
  5. Step 5: Solve for x
    x = 43,165,334.62/5,666.63
  6. Step 6: Final answer
    x = 7,617.46

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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.