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Finding the Fourth Proportional to 8,607.16, 12,910.68 and 5,698.48

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Solution

The fourth proportional to 8,607.16, 12,910.68 and 5,698.48 is: 8,547.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.16 : 12,910.68 = 5,698.48 : x
  2. Step 2: Convert to fraction form
    8,607.16/12,910.68 = 5,698.48/x
  3. Step 3: Cross multiply
    8,607.16x = 12,910.68 × 5,698.48
  4. Step 4: Simplify right side
    8,607.16x = 73,571,251.77
  5. Step 5: Solve for x
    x = 73,571,251.77/8,607.16
  6. Step 6: Final answer
    x = 8,547.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.