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Finding the Fourth Proportional to 8,541.10, 12,726.74 and 7,609.50

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Solution

The fourth proportional to 8,541.10, 12,726.74 and 7,609.50 is: 11,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.10 : 12,726.74 = 7,609.50 : x
  2. Step 2: Convert to fraction form
    8,541.10/12,726.74 = 7,609.50/x
  3. Step 3: Cross multiply
    8,541.10x = 12,726.74 × 7,609.50
  4. Step 4: Simplify right side
    8,541.10x = 96,844,064.40
  5. Step 5: Solve for x
    x = 96,844,064.40/8,541.10
  6. Step 6: Final answer
    x = 11,338.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.