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Finding the Fourth Proportional to 7,374.50, 10,176.78 and 4,230.62

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Solution

The fourth proportional to 7,374.50, 10,176.78 and 4,230.62 is: 5,838.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.50 : 10,176.78 = 4,230.62 : x
  2. Step 2: Convert to fraction form
    7,374.50/10,176.78 = 4,230.62/x
  3. Step 3: Cross multiply
    7,374.50x = 10,176.78 × 4,230.62
  4. Step 4: Simplify right side
    7,374.50x = 43,054,089.00
  5. Step 5: Solve for x
    x = 43,054,089.00/7,374.50
  6. Step 6: Final answer
    x = 5,838.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.