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Finding the Fourth Proportional to 5,807.79, 8,700.12 and 4,251.06

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Solution

The fourth proportional to 5,807.79, 8,700.12 and 4,251.06 is: 6,368.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,807.79 : 8,700.12 = 4,251.06 : x
  2. Step 2: Convert to fraction form
    5,807.79/8,700.12 = 4,251.06/x
  3. Step 3: Cross multiply
    5,807.79x = 8,700.12 × 4,251.06
  4. Step 4: Simplify right side
    5,807.79x = 36,984,732.13
  5. Step 5: Solve for x
    x = 36,984,732.13/5,807.79
  6. Step 6: Final answer
    x = 6,368.12

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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.