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Finding the Fourth Proportional to 3,603.44, 4,972.72 and 2,031.51

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Solution

The fourth proportional to 3,603.44, 4,972.72 and 2,031.51 is: 2,803.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.44 : 4,972.72 = 2,031.51 : x
  2. Step 2: Convert to fraction form
    3,603.44/4,972.72 = 2,031.51/x
  3. Step 3: Cross multiply
    3,603.44x = 4,972.72 × 2,031.51
  4. Step 4: Simplify right side
    3,603.44x = 10,102,130.41
  5. Step 5: Solve for x
    x = 10,102,130.41/3,603.44
  6. Step 6: Final answer
    x = 2,803.47

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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.