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Finding the Fourth Proportional to 28,310.94, 42,463.92 and 9,590.58

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Solution

The fourth proportional to 28,310.94, 42,463.92 and 9,590.58 is: 14,385.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.94 : 42,463.92 = 9,590.58 : x
  2. Step 2: Convert to fraction form
    28,310.94/42,463.92 = 9,590.58/x
  3. Step 3: Cross multiply
    28,310.94x = 42,463.92 × 9,590.58
  4. Step 4: Simplify right side
    28,310.94x = 407,253,621.87
  5. Step 5: Solve for x
    x = 407,253,621.87/28,310.94
  6. Step 6: Final answer
    x = 14,385.03

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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.