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Finding the Fourth Proportional to 9,134.81, 12,606.08 and 4,943.06

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Solution

The fourth proportional to 9,134.81, 12,606.08 and 4,943.06 is: 6,821.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,134.81 : 12,606.08 = 4,943.06 : x
  2. Step 2: Convert to fraction form
    9,134.81/12,606.08 = 4,943.06/x
  3. Step 3: Cross multiply
    9,134.81x = 12,606.08 × 4,943.06
  4. Step 4: Simplify right side
    9,134.81x = 62,312,616.60
  5. Step 5: Solve for x
    x = 62,312,616.60/9,134.81
  6. Step 6: Final answer
    x = 6,821.44

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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.