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Finding the Fourth Proportional to 9,158.08, 12,638.08 and 4,966.32

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Solution

The fourth proportional to 9,158.08, 12,638.08 and 4,966.32 is: 6,853.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,158.08 : 12,638.08 = 4,966.32 : x
  2. Step 2: Convert to fraction form
    9,158.08/12,638.08 = 4,966.32/x
  3. Step 3: Cross multiply
    9,158.08x = 12,638.08 × 4,966.32
  4. Step 4: Simplify right side
    9,158.08x = 62,764,749.47
  5. Step 5: Solve for x
    x = 62,764,749.47/9,158.08
  6. Step 6: Final answer
    x = 6,853.48

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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.