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Finding the Fourth Proportional to 8,699.16, 13,048.78 and 2,543.16

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Solution

The fourth proportional to 8,699.16, 13,048.78 and 2,543.16 is: 3,814.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.16 : 13,048.78 = 2,543.16 : x
  2. Step 2: Convert to fraction form
    8,699.16/13,048.78 = 2,543.16/x
  3. Step 3: Cross multiply
    8,699.16x = 13,048.78 × 2,543.16
  4. Step 4: Simplify right side
    8,699.16x = 33,185,135.34
  5. Step 5: Solve for x
    x = 33,185,135.34/8,699.16
  6. Step 6: Final answer
    x = 3,814.75

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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.