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Finding the Fourth Proportional to 9,153.52, 12,631.06 and 5,325.86

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Solution

The fourth proportional to 9,153.52, 12,631.06 and 5,325.86 is: 7,349.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.52 : 12,631.06 = 5,325.86 : x
  2. Step 2: Convert to fraction form
    9,153.52/12,631.06 = 5,325.86/x
  3. Step 3: Cross multiply
    9,153.52x = 12,631.06 × 5,325.86
  4. Step 4: Simplify right side
    9,153.52x = 67,271,257.21
  5. Step 5: Solve for x
    x = 67,271,257.21/9,153.52
  6. Step 6: Final answer
    x = 7,349.22

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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.