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Finding the Fourth Proportional to 9,125.76, 13,684.08 and 4,741.92

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Solution

The fourth proportional to 9,125.76, 13,684.08 and 4,741.92 is: 7,110.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.76 : 13,684.08 = 4,741.92 : x
  2. Step 2: Convert to fraction form
    9,125.76/13,684.08 = 4,741.92/x
  3. Step 3: Cross multiply
    9,125.76x = 13,684.08 × 4,741.92
  4. Step 4: Simplify right side
    9,125.76x = 64,888,812.63
  5. Step 5: Solve for x
    x = 64,888,812.63/9,125.76
  6. Step 6: Final answer
    x = 7,110.51

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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.