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Finding the Fourth Proportional to 10,479.74, 15,698.54 and 4,849.50

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Solution

The fourth proportional to 10,479.74, 15,698.54 and 4,849.50 is: 7,264.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.74 : 15,698.54 = 4,849.50 : x
  2. Step 2: Convert to fraction form
    10,479.74/15,698.54 = 4,849.50/x
  3. Step 3: Cross multiply
    10,479.74x = 15,698.54 × 4,849.50
  4. Step 4: Simplify right side
    10,479.74x = 76,130,045.48
  5. Step 5: Solve for x
    x = 76,130,045.48/10,479.74
  6. Step 6: Final answer
    x = 7,264.50

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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.