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Finding the Fourth Proportional to 7,798.74, 11,700.87 and 4,873.62

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Solution

The fourth proportional to 7,798.74, 11,700.87 and 4,873.62 is: 7,312.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.74 : 11,700.87 = 4,873.62 : x
  2. Step 2: Convert to fraction form
    7,798.74/11,700.87 = 4,873.62/x
  3. Step 3: Cross multiply
    7,798.74x = 11,700.87 × 4,873.62
  4. Step 4: Simplify right side
    7,798.74x = 57,025,594.05
  5. Step 5: Solve for x
    x = 57,025,594.05/7,798.74
  6. Step 6: Final answer
    x = 7,312.15

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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.