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Finding the Fourth Proportional to 3,052.79, 4,578.93 and 972.71

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Solution

The fourth proportional to 3,052.79, 4,578.93 and 972.71 is: 1,458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,052.79 : 4,578.93 = 972.71 : x
  2. Step 2: Convert to fraction form
    3,052.79/4,578.93 = 972.71/x
  3. Step 3: Cross multiply
    3,052.79x = 4,578.93 × 972.71
  4. Step 4: Simplify right side
    3,052.79x = 4,453,971.00
  5. Step 5: Solve for x
    x = 4,453,971.00/3,052.79
  6. Step 6: Final answer
    x = 1,458.98

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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.