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Finding the Fourth Proportional to 9,155.52, 13,741.53 and 4,776.05

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Solution

The fourth proportional to 9,155.52, 13,741.53 and 4,776.05 is: 7,168.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.52 : 13,741.53 = 4,776.05 : x
  2. Step 2: Convert to fraction form
    9,155.52/13,741.53 = 4,776.05/x
  3. Step 3: Cross multiply
    9,155.52x = 13,741.53 × 4,776.05
  4. Step 4: Simplify right side
    9,155.52x = 65,630,234.36
  5. Step 5: Solve for x
    x = 65,630,234.36/9,155.52
  6. Step 6: Final answer
    x = 7,168.38

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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.