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Finding the Fourth Proportional to 5,571.65, 8,359 and 4,959.63

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Solution

The fourth proportional to 5,571.65, 8,359 and 4,959.63 is: 7,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.65 : 8,359 = 4,959.63 : x
  2. Step 2: Convert to fraction form
    5,571.65/8,359 = 4,959.63/x
  3. Step 3: Cross multiply
    5,571.65x = 8,359 × 4,959.63
  4. Step 4: Simplify right side
    5,571.65x = 41,457,547.17
  5. Step 5: Solve for x
    x = 41,457,547.17/5,571.65
  6. Step 6: Final answer
    x = 7,440.80

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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.