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Finding the Fourth Proportional to 3,648.45, 5,472.71 and 1,051.47

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Solution

The fourth proportional to 3,648.45, 5,472.71 and 1,051.47 is: 1,577.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648.45 : 5,472.71 = 1,051.47 : x
  2. Step 2: Convert to fraction form
    3,648.45/5,472.71 = 1,051.47/x
  3. Step 3: Cross multiply
    3,648.45x = 5,472.71 × 1,051.47
  4. Step 4: Simplify right side
    3,648.45x = 5,754,385.13
  5. Step 5: Solve for x
    x = 5,754,385.13/3,648.45
  6. Step 6: Final answer
    x = 1,577.21

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1.5x scale

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.