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Finding the Fourth Proportional to 46,676.87, 64,411.88 and 28,557.72

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Solution

The fourth proportional to 46,676.87, 64,411.88 and 28,557.72 is: 39,408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,676.87 : 64,411.88 = 28,557.72 : x
  2. Step 2: Convert to fraction form
    46,676.87/64,411.88 = 28,557.72/x
  3. Step 3: Cross multiply
    46,676.87x = 64,411.88 × 28,557.72
  4. Step 4: Simplify right side
    46,676.87x = 1,839,456,290.93
  5. Step 5: Solve for x
    x = 1,839,456,290.93/46,676.87
  6. Step 6: Final answer
    x = 39,408.31

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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.