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Finding the Fourth Proportional to 4,811.72, 7,203.65 and 2,957.22

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Solution

The fourth proportional to 4,811.72, 7,203.65 and 2,957.22 is: 4,427.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.72 : 7,203.65 = 2,957.22 : x
  2. Step 2: Convert to fraction form
    4,811.72/7,203.65 = 2,957.22/x
  3. Step 3: Cross multiply
    4,811.72x = 7,203.65 × 2,957.22
  4. Step 4: Simplify right side
    4,811.72x = 21,302,763.07
  5. Step 5: Solve for x
    x = 21,302,763.07/4,811.72
  6. Step 6: Final answer
    x = 4,427.26

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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.