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Finding the Fourth Proportional to 13,483.68, 18,602.06 and 8,176.56

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Solution

The fourth proportional to 13,483.68, 18,602.06 and 8,176.56 is: 11,280.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.68 : 18,602.06 = 8,176.56 : x
  2. Step 2: Convert to fraction form
    13,483.68/18,602.06 = 8,176.56/x
  3. Step 3: Cross multiply
    13,483.68x = 18,602.06 × 8,176.56
  4. Step 4: Simplify right side
    13,483.68x = 152,100,859.71
  5. Step 5: Solve for x
    x = 152,100,859.71/13,483.68
  6. Step 6: Final answer
    x = 11,280.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.