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Finding the Fourth Proportional to 1,897.98, 2,848.05 and 1,515.66

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Solution

The fourth proportional to 1,897.98, 2,848.05 and 1,515.66 is: 2,274.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.98 : 2,848.05 = 1,515.66 : x
  2. Step 2: Convert to fraction form
    1,897.98/2,848.05 = 1,515.66/x
  3. Step 3: Cross multiply
    1,897.98x = 2,848.05 × 1,515.66
  4. Step 4: Simplify right side
    1,897.98x = 4,316,675.46
  5. Step 5: Solve for x
    x = 4,316,675.46/1,897.98
  6. Step 6: Final answer
    x = 2,274.35

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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.