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Finding the Fourth Proportional to 4,928.79, 7,389.02 and 2,294.93

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Solution

The fourth proportional to 4,928.79, 7,389.02 and 2,294.93 is: 3,440.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.79 : 7,389.02 = 2,294.93 : x
  2. Step 2: Convert to fraction form
    4,928.79/7,389.02 = 2,294.93/x
  3. Step 3: Cross multiply
    4,928.79x = 7,389.02 × 2,294.93
  4. Step 4: Simplify right side
    4,928.79x = 16,957,283.67
  5. Step 5: Solve for x
    x = 16,957,283.67/4,928.79
  6. Step 6: Final answer
    x = 3,440.46

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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.