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Finding the Fourth Proportional to 6,355.12, 8,762.44 and 5,469.40

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Solution

The fourth proportional to 6,355.12, 8,762.44 and 5,469.40 is: 7,541.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,355.12 : 8,762.44 = 5,469.40 : x
  2. Step 2: Convert to fraction form
    6,355.12/8,762.44 = 5,469.40/x
  3. Step 3: Cross multiply
    6,355.12x = 8,762.44 × 5,469.40
  4. Step 4: Simplify right side
    6,355.12x = 47,925,289.34
  5. Step 5: Solve for x
    x = 47,925,289.34/6,355.12
  6. Step 6: Final answer
    x = 7,541.21

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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.