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Finding the Fourth Proportional to 5,580.58, 8,363 and 4,405.40

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Solution

The fourth proportional to 5,580.58, 8,363 and 4,405.40 is: 6,601.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,580.58 : 8,363 = 4,405.40 : x
  2. Step 2: Convert to fraction form
    5,580.58/8,363 = 4,405.40/x
  3. Step 3: Cross multiply
    5,580.58x = 8,363 × 4,405.40
  4. Step 4: Simplify right side
    5,580.58x = 36,842,360.20
  5. Step 5: Solve for x
    x = 36,842,360.20/5,580.58
  6. Step 6: Final answer
    x = 6,601.89

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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.