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Finding the Fourth Proportional to 4,328.61, 6,490.15 and 2,573.15

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Solution

The fourth proportional to 4,328.61, 6,490.15 and 2,573.15 is: 3,858.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,328.61 : 6,490.15 = 2,573.15 : x
  2. Step 2: Convert to fraction form
    4,328.61/6,490.15 = 2,573.15/x
  3. Step 3: Cross multiply
    4,328.61x = 6,490.15 × 2,573.15
  4. Step 4: Simplify right side
    4,328.61x = 16,700,129.47
  5. Step 5: Solve for x
    x = 16,700,129.47/4,328.61
  6. Step 6: Final answer
    x = 3,858.08

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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.