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Finding the Fourth Proportional to 7,053.57, 10,578.20 and 1,858.77

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Solution

The fourth proportional to 7,053.57, 10,578.20 and 1,858.77 is: 2,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,053.57 : 10,578.20 = 1,858.77 : x
  2. Step 2: Convert to fraction form
    7,053.57/10,578.20 = 1,858.77/x
  3. Step 3: Cross multiply
    7,053.57x = 10,578.20 × 1,858.77
  4. Step 4: Simplify right side
    7,053.57x = 19,662,431.52
  5. Step 5: Solve for x
    x = 19,662,431.52/7,053.57
  6. Step 6: Final answer
    x = 2,787.59

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1.5x scale

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.