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Finding the Fourth Proportional to 5,709.30, 8,549.55 and 4,557.30

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Solution

The fourth proportional to 5,709.30, 8,549.55 and 4,557.30 is: 6,824.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,709.30 : 8,549.55 = 4,557.30 : x
  2. Step 2: Convert to fraction form
    5,709.30/8,549.55 = 4,557.30/x
  3. Step 3: Cross multiply
    5,709.30x = 8,549.55 × 4,557.30
  4. Step 4: Simplify right side
    5,709.30x = 38,962,864.22
  5. Step 5: Solve for x
    x = 38,962,864.22/5,709.30
  6. Step 6: Final answer
    x = 6,824.46

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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.