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Finding the Fourth Proportional to 3,168.47, 4,750.46 and 975.98

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Solution

The fourth proportional to 3,168.47, 4,750.46 and 975.98 is: 1,463.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.47 : 4,750.46 = 975.98 : x
  2. Step 2: Convert to fraction form
    3,168.47/4,750.46 = 975.98/x
  3. Step 3: Cross multiply
    3,168.47x = 4,750.46 × 975.98
  4. Step 4: Simplify right side
    3,168.47x = 4,636,364.61
  5. Step 5: Solve for x
    x = 4,636,364.61/3,168.47
  6. Step 6: Final answer
    x = 1,463.28

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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.