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Finding the Fourth Proportional to 1,476.42, 2,037.50 and 847

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Solution

The fourth proportional to 1,476.42, 2,037.50 and 847 is: 1,168.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.42 : 2,037.50 = 847 : x
  2. Step 2: Convert to fraction form
    1,476.42/2,037.50 = 847/x
  3. Step 3: Cross multiply
    1,476.42x = 2,037.50 × 847
  4. Step 4: Simplify right side
    1,476.42x = 1,725,762.50
  5. Step 5: Solve for x
    x = 1,725,762.50/1,476.42
  6. Step 6: Final answer
    x = 1,168.88

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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.