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Finding the Fourth Proportional to 8,698.23, 12,003.50 and 4,719.33

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Solution

The fourth proportional to 8,698.23, 12,003.50 and 4,719.33 is: 6,512.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.23 : 12,003.50 = 4,719.33 : x
  2. Step 2: Convert to fraction form
    8,698.23/12,003.50 = 4,719.33/x
  3. Step 3: Cross multiply
    8,698.23x = 12,003.50 × 4,719.33
  4. Step 4: Simplify right side
    8,698.23x = 56,648,489.45
  5. Step 5: Solve for x
    x = 56,648,489.45/8,698.23
  6. Step 6: Final answer
    x = 6,512.65

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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.