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Finding the Fourth Proportional to 11,652.12, 17,478.21 and 5,411.34

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Solution

The fourth proportional to 11,652.12, 17,478.21 and 5,411.34 is: 8,117.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,652.12 : 17,478.21 = 5,411.34 : x
  2. Step 2: Convert to fraction form
    11,652.12/17,478.21 = 5,411.34/x
  3. Step 3: Cross multiply
    11,652.12x = 17,478.21 × 5,411.34
  4. Step 4: Simplify right side
    11,652.12x = 94,580,536.90
  5. Step 5: Solve for x
    x = 94,580,536.90/11,652.12
  6. Step 6: Final answer
    x = 8,117.02

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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.