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Finding the Fourth Proportional to 23,430.52, 35,143.98 and 8,636.68

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Solution

The fourth proportional to 23,430.52, 35,143.98 and 8,636.68 is: 12,954.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,430.52 : 35,143.98 = 8,636.68 : x
  2. Step 2: Convert to fraction form
    23,430.52/35,143.98 = 8,636.68/x
  3. Step 3: Cross multiply
    23,430.52x = 35,143.98 × 8,636.68
  4. Step 4: Simplify right side
    23,430.52x = 303,527,309.19
  5. Step 5: Solve for x
    x = 303,527,309.19/23,430.52
  6. Step 6: Final answer
    x = 12,954.36

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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.