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Finding the Fourth Proportional to 11,445.86, 15,795.13 and 6,410.07

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Solution

The fourth proportional to 11,445.86, 15,795.13 and 6,410.07 is: 8,845.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.86 : 15,795.13 = 6,410.07 : x
  2. Step 2: Convert to fraction form
    11,445.86/15,795.13 = 6,410.07/x
  3. Step 3: Cross multiply
    11,445.86x = 15,795.13 × 6,410.07
  4. Step 4: Simplify right side
    11,445.86x = 101,247,888.96
  5. Step 5: Solve for x
    x = 101,247,888.96/11,445.86
  6. Step 6: Final answer
    x = 8,845.81

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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.