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Finding the Fourth Proportional to 15,026.10, 20,737.53 and 8,312.22

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Solution

The fourth proportional to 15,026.10, 20,737.53 and 8,312.22 is: 11,471.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,026.10 : 20,737.53 = 8,312.22 : x
  2. Step 2: Convert to fraction form
    15,026.10/20,737.53 = 8,312.22/x
  3. Step 3: Cross multiply
    15,026.10x = 20,737.53 × 8,312.22
  4. Step 4: Simplify right side
    15,026.10x = 172,374,911.62
  5. Step 5: Solve for x
    x = 172,374,911.62/15,026.10
  6. Step 6: Final answer
    x = 11,471.70

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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.