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Finding the Fourth Proportional to 67,590.40, 93,280.80 and 37,382.80

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Solution

The fourth proportional to 67,590.40, 93,280.80 and 37,382.80 is: 51,591.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,590.40 : 93,280.80 = 37,382.80 : x
  2. Step 2: Convert to fraction form
    67,590.40/93,280.80 = 37,382.80/x
  3. Step 3: Cross multiply
    67,590.40x = 93,280.80 × 37,382.80
  4. Step 4: Simplify right side
    67,590.40x = 3,487,097,490.24
  5. Step 5: Solve for x
    x = 3,487,097,490.24/67,590.40
  6. Step 6: Final answer
    x = 51,591.61

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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.