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Finding the Fourth Proportional to 37,879.68, 52,303.68 and 30,794.88

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Solution

The fourth proportional to 37,879.68, 52,303.68 and 30,794.88 is: 42,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,879.68 : 52,303.68 = 30,794.88 : x
  2. Step 2: Convert to fraction form
    37,879.68/52,303.68 = 30,794.88/x
  3. Step 3: Cross multiply
    37,879.68x = 52,303.68 × 30,794.88
  4. Step 4: Simplify right side
    37,879.68x = 1,610,685,549.16
  5. Step 5: Solve for x
    x = 1,610,685,549.16/37,879.68
  6. Step 6: Final answer
    x = 42,521.10

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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.