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Finding the Fourth Proportional to 8,698.46, 12,005.17 and 5,113.27

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Solution

The fourth proportional to 8,698.46, 12,005.17 and 5,113.27 is: 7,057.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.46 : 12,005.17 = 5,113.27 : x
  2. Step 2: Convert to fraction form
    8,698.46/12,005.17 = 5,113.27/x
  3. Step 3: Cross multiply
    8,698.46x = 12,005.17 × 5,113.27
  4. Step 4: Simplify right side
    8,698.46x = 61,385,632.81
  5. Step 5: Solve for x
    x = 61,385,632.81/8,698.46
  6. Step 6: Final answer
    x = 7,057.07

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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.