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Finding the Fourth Proportional to 3,053.13, 4,580.13 and 972.45

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Solution

The fourth proportional to 3,053.13, 4,580.13 and 972.45 is: 1,458.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,053.13 : 4,580.13 = 972.45 : x
  2. Step 2: Convert to fraction form
    3,053.13/4,580.13 = 972.45/x
  3. Step 3: Cross multiply
    3,053.13x = 4,580.13 × 972.45
  4. Step 4: Simplify right side
    3,053.13x = 4,453,947.42
  5. Step 5: Solve for x
    x = 4,453,947.42/3,053.13
  6. Step 6: Final answer
    x = 1,458.81

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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.