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Finding the Fourth Proportional to 18,054.96, 27,078.54 and 4,907.46

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Solution

The fourth proportional to 18,054.96, 27,078.54 and 4,907.46 is: 7,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,054.96 : 27,078.54 = 4,907.46 : x
  2. Step 2: Convert to fraction form
    18,054.96/27,078.54 = 4,907.46/x
  3. Step 3: Cross multiply
    18,054.96x = 27,078.54 × 4,907.46
  4. Step 4: Simplify right side
    18,054.96x = 132,886,851.91
  5. Step 5: Solve for x
    x = 132,886,851.91/18,054.96
  6. Step 6: Final answer
    x = 7,360.13

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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.