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Finding the Fourth Proportional to 12,322.56, 18,483.68 and 3,088.56

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Solution

The fourth proportional to 12,322.56, 18,483.68 and 3,088.56 is: 4,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,322.56 : 18,483.68 = 3,088.56 : x
  2. Step 2: Convert to fraction form
    12,322.56/18,483.68 = 3,088.56/x
  3. Step 3: Cross multiply
    12,322.56x = 18,483.68 × 3,088.56
  4. Step 4: Simplify right side
    12,322.56x = 57,087,954.70
  5. Step 5: Solve for x
    x = 57,087,954.70/12,322.56
  6. Step 6: Final answer
    x = 4,632.80

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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.