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Finding the Fourth Proportional to 4,893.72, 7,341.12 and 1,972.08

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Solution

The fourth proportional to 4,893.72, 7,341.12 and 1,972.08 is: 2,958.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,893.72 : 7,341.12 = 1,972.08 : x
  2. Step 2: Convert to fraction form
    4,893.72/7,341.12 = 1,972.08/x
  3. Step 3: Cross multiply
    4,893.72x = 7,341.12 × 1,972.08
  4. Step 4: Simplify right side
    4,893.72x = 14,477,275.93
  5. Step 5: Solve for x
    x = 14,477,275.93/4,893.72
  6. Step 6: Final answer
    x = 2,958.34

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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.