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Finding the Fourth Proportional to 67,879.36, 93,674.10 and 37,666.72

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Solution

The fourth proportional to 67,879.36, 93,674.10 and 37,666.72 is: 51,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,879.36 : 93,674.10 = 37,666.72 : x
  2. Step 2: Convert to fraction form
    67,879.36/93,674.10 = 37,666.72/x
  3. Step 3: Cross multiply
    67,879.36x = 93,674.10 × 37,666.72
  4. Step 4: Simplify right side
    67,879.36x = 3,528,396,095.95
  5. Step 5: Solve for x
    x = 3,528,396,095.95/67,879.36
  6. Step 6: Final answer
    x = 51,980.40

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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.