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Finding the Fourth Proportional to 13,053.96, 19,543.62 and 8,662.68

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Solution

The fourth proportional to 13,053.96, 19,543.62 and 8,662.68 is: 12,969.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.96 : 19,543.62 = 8,662.68 : x
  2. Step 2: Convert to fraction form
    13,053.96/19,543.62 = 8,662.68/x
  3. Step 3: Cross multiply
    13,053.96x = 19,543.62 × 8,662.68
  4. Step 4: Simplify right side
    13,053.96x = 169,300,126.10
  5. Step 5: Solve for x
    x = 169,300,126.10/13,053.96
  6. Step 6: Final answer
    x = 12,969.25

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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.