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Finding the Fourth Proportional to 5,641.04, 7,784.56 and 3,157.04

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Solution

The fourth proportional to 5,641.04, 7,784.56 and 3,157.04 is: 4,356.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,641.04 : 7,784.56 = 3,157.04 : x
  2. Step 2: Convert to fraction form
    5,641.04/7,784.56 = 3,157.04/x
  3. Step 3: Cross multiply
    5,641.04x = 7,784.56 × 3,157.04
  4. Step 4: Simplify right side
    5,641.04x = 24,576,167.30
  5. Step 5: Solve for x
    x = 24,576,167.30/5,641.04
  6. Step 6: Final answer
    x = 4,356.67

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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.