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Finding the Fourth Proportional to 11,216.70, 16,746.18 and 8,570.34

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Solution

The fourth proportional to 11,216.70, 16,746.18 and 8,570.34 is: 12,795.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.70 : 16,746.18 = 8,570.34 : x
  2. Step 2: Convert to fraction form
    11,216.70/16,746.18 = 8,570.34/x
  3. Step 3: Cross multiply
    11,216.70x = 16,746.18 × 8,570.34
  4. Step 4: Simplify right side
    11,216.70x = 143,520,456.30
  5. Step 5: Solve for x
    x = 143,520,456.30/11,216.70
  6. Step 6: Final answer
    x = 12,795.25

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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.