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Finding the Fourth Proportional to 7,368.70, 11,054.40 and 2,438.50

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Solution

The fourth proportional to 7,368.70, 11,054.40 and 2,438.50 is: 3,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.70 : 11,054.40 = 2,438.50 : x
  2. Step 2: Convert to fraction form
    7,368.70/11,054.40 = 2,438.50/x
  3. Step 3: Cross multiply
    7,368.70x = 11,054.40 × 2,438.50
  4. Step 4: Simplify right side
    7,368.70x = 26,956,154.40
  5. Step 5: Solve for x
    x = 26,956,154.40/7,368.70
  6. Step 6: Final answer
    x = 3,658.20

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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.