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Finding the Fourth Proportional to 2,784.04, 3,843.30 and 1,737.64

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Solution

The fourth proportional to 2,784.04, 3,843.30 and 1,737.64 is: 2,398.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.04 : 3,843.30 = 1,737.64 : x
  2. Step 2: Convert to fraction form
    2,784.04/3,843.30 = 1,737.64/x
  3. Step 3: Cross multiply
    2,784.04x = 3,843.30 × 1,737.64
  4. Step 4: Simplify right side
    2,784.04x = 6,678,271.81
  5. Step 5: Solve for x
    x = 6,678,271.81/2,784.04
  6. Step 6: Final answer
    x = 2,398.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.