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Finding the Fourth Proportional to 18,407.79, 27,607.80 and 5,928.93

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Solution

The fourth proportional to 18,407.79, 27,607.80 and 5,928.93 is: 8,892.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.79 : 27,607.80 = 5,928.93 : x
  2. Step 2: Convert to fraction form
    18,407.79/27,607.80 = 5,928.93/x
  3. Step 3: Cross multiply
    18,407.79x = 27,607.80 × 5,928.93
  4. Step 4: Simplify right side
    18,407.79x = 163,684,713.65
  5. Step 5: Solve for x
    x = 163,684,713.65/18,407.79
  6. Step 6: Final answer
    x = 8,892.14

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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.