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Finding the Fourth Proportional to 6,355.32, 8,750.76 and 5,645.92

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Solution

The fourth proportional to 6,355.32, 8,750.76 and 5,645.92 is: 7,773.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,355.32 : 8,750.76 = 5,645.92 : x
  2. Step 2: Convert to fraction form
    6,355.32/8,750.76 = 5,645.92/x
  3. Step 3: Cross multiply
    6,355.32x = 8,750.76 × 5,645.92
  4. Step 4: Simplify right side
    6,355.32x = 49,406,090.90
  5. Step 5: Solve for x
    x = 49,406,090.90/6,355.32
  6. Step 6: Final answer
    x = 7,773.97

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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.