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Finding the Fourth Proportional to 43,603.67, 60,131.72 and 28,509.28

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Solution

The fourth proportional to 43,603.67, 60,131.72 and 28,509.28 is: 39,315.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,603.67 : 60,131.72 = 28,509.28 : x
  2. Step 2: Convert to fraction form
    43,603.67/60,131.72 = 28,509.28/x
  3. Step 3: Cross multiply
    43,603.67x = 60,131.72 × 28,509.28
  4. Step 4: Simplify right side
    43,603.67x = 1,714,311,963.31
  5. Step 5: Solve for x
    x = 1,714,311,963.31/43,603.67
  6. Step 6: Final answer
    x = 39,315.77

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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.