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Finding the Fourth Proportional to 2,053.07, 3,080.10 and 957.20

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Solution

The fourth proportional to 2,053.07, 3,080.10 and 957.20 is: 1,436.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,053.07 : 3,080.10 = 957.20 : x
  2. Step 2: Convert to fraction form
    2,053.07/3,080.10 = 957.20/x
  3. Step 3: Cross multiply
    2,053.07x = 3,080.10 × 957.20
  4. Step 4: Simplify right side
    2,053.07x = 2,948,271.72
  5. Step 5: Solve for x
    x = 2,948,271.72/2,053.07
  6. Step 6: Final answer
    x = 1,436.03

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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.