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Finding the Fourth Proportional to 9,386.16, 12,952.08 and 5,194.20

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Solution

The fourth proportional to 9,386.16, 12,952.08 and 5,194.20 is: 7,167.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,386.16 : 12,952.08 = 5,194.20 : x
  2. Step 2: Convert to fraction form
    9,386.16/12,952.08 = 5,194.20/x
  3. Step 3: Cross multiply
    9,386.16x = 12,952.08 × 5,194.20
  4. Step 4: Simplify right side
    9,386.16x = 67,275,693.94
  5. Step 5: Solve for x
    x = 67,275,693.94/9,386.16
  6. Step 6: Final answer
    x = 7,167.54

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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.