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Finding the Fourth Proportional to 8,741.56, 13,113.78 and 4,359.16

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Solution

The fourth proportional to 8,741.56, 13,113.78 and 4,359.16 is: 6,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,741.56 : 13,113.78 = 4,359.16 : x
  2. Step 2: Convert to fraction form
    8,741.56/13,113.78 = 4,359.16/x
  3. Step 3: Cross multiply
    8,741.56x = 13,113.78 × 4,359.16
  4. Step 4: Simplify right side
    8,741.56x = 57,165,065.22
  5. Step 5: Solve for x
    x = 57,165,065.22/8,741.56
  6. Step 6: Final answer
    x = 6,539.46

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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.