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Finding the Fourth Proportional to 8,603.74, 11,873.01 and 4,826.91

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Solution

The fourth proportional to 8,603.74, 11,873.01 and 4,826.91 is: 6,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.74 : 11,873.01 = 4,826.91 : x
  2. Step 2: Convert to fraction form
    8,603.74/11,873.01 = 4,826.91/x
  3. Step 3: Cross multiply
    8,603.74x = 11,873.01 × 4,826.91
  4. Step 4: Simplify right side
    8,603.74x = 57,309,950.70
  5. Step 5: Solve for x
    x = 57,309,950.70/8,603.74
  6. Step 6: Final answer
    x = 6,661.05

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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.