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Finding the Fourth Proportional to 3,728.88, 5,587.56 and 2,358

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Solution

The fourth proportional to 3,728.88, 5,587.56 and 2,358 is: 3,533.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.88 : 5,587.56 = 2,358 : x
  2. Step 2: Convert to fraction form
    3,728.88/5,587.56 = 2,358/x
  3. Step 3: Cross multiply
    3,728.88x = 5,587.56 × 2,358
  4. Step 4: Simplify right side
    3,728.88x = 13,175,466.48
  5. Step 5: Solve for x
    x = 13,175,466.48/3,728.88
  6. Step 6: Final answer
    x = 3,533.36

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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.