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Finding the Fourth Proportional to 7,951.50, 10,973.07 and 4,639.50

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Solution

The fourth proportional to 7,951.50, 10,973.07 and 4,639.50 is: 6,402.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.50 : 10,973.07 = 4,639.50 : x
  2. Step 2: Convert to fraction form
    7,951.50/10,973.07 = 4,639.50/x
  3. Step 3: Cross multiply
    7,951.50x = 10,973.07 × 4,639.50
  4. Step 4: Simplify right side
    7,951.50x = 50,909,558.27
  5. Step 5: Solve for x
    x = 50,909,558.27/7,951.50
  6. Step 6: Final answer
    x = 6,402.51

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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.