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Finding the Fourth Proportional to 18,454.51, 27,664.71 and 7,358.50

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Solution

The fourth proportional to 18,454.51, 27,664.71 and 7,358.50 is: 11,030.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,454.51 : 27,664.71 = 7,358.50 : x
  2. Step 2: Convert to fraction form
    18,454.51/27,664.71 = 7,358.50/x
  3. Step 3: Cross multiply
    18,454.51x = 27,664.71 × 7,358.50
  4. Step 4: Simplify right side
    18,454.51x = 203,570,768.54
  5. Step 5: Solve for x
    x = 203,570,768.54/18,454.51
  6. Step 6: Final answer
    x = 11,030.95

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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.