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Finding the Fourth Proportional to 1,886.12, 2,602.94 and 1,046.90

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Solution

The fourth proportional to 1,886.12, 2,602.94 and 1,046.90 is: 1,444.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886.12 : 2,602.94 = 1,046.90 : x
  2. Step 2: Convert to fraction form
    1,886.12/2,602.94 = 1,046.90/x
  3. Step 3: Cross multiply
    1,886.12x = 2,602.94 × 1,046.90
  4. Step 4: Simplify right side
    1,886.12x = 2,725,017.89
  5. Step 5: Solve for x
    x = 2,725,017.89/1,886.12
  6. Step 6: Final answer
    x = 1,444.77

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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.