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Finding the Fourth Proportional to 5,798.63, 8,699.57 and 1,905.77

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Solution

The fourth proportional to 5,798.63, 8,699.57 and 1,905.77 is: 2,859.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,798.63 : 8,699.57 = 1,905.77 : x
  2. Step 2: Convert to fraction form
    5,798.63/8,699.57 = 1,905.77/x
  3. Step 3: Cross multiply
    5,798.63x = 8,699.57 × 1,905.77
  4. Step 4: Simplify right side
    5,798.63x = 16,579,379.52
  5. Step 5: Solve for x
    x = 16,579,379.52/5,798.63
  6. Step 6: Final answer
    x = 2,859.19

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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.