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Finding the Fourth Proportional to 7,390.64, 10,200.79 and 4,873.19

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Solution

The fourth proportional to 7,390.64, 10,200.79 and 4,873.19 is: 6,726.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.64 : 10,200.79 = 4,873.19 : x
  2. Step 2: Convert to fraction form
    7,390.64/10,200.79 = 4,873.19/x
  3. Step 3: Cross multiply
    7,390.64x = 10,200.79 × 4,873.19
  4. Step 4: Simplify right side
    7,390.64x = 49,710,363.45
  5. Step 5: Solve for x
    x = 49,710,363.45/7,390.64
  6. Step 6: Final answer
    x = 6,726.13

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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.