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Finding the Fourth Proportional to 8,762.96, 13,141.21 and 6,892.51

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Solution

The fourth proportional to 8,762.96, 13,141.21 and 6,892.51 is: 10,336.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.96 : 13,141.21 = 6,892.51 : x
  2. Step 2: Convert to fraction form
    8,762.96/13,141.21 = 6,892.51/x
  3. Step 3: Cross multiply
    8,762.96x = 13,141.21 × 6,892.51
  4. Step 4: Simplify right side
    8,762.96x = 90,575,921.34
  5. Step 5: Solve for x
    x = 90,575,921.34/8,762.96
  6. Step 6: Final answer
    x = 10,336.22

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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.