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Finding the Fourth Proportional to 13,059.10, 19,588.65 and 4,739.10

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Solution

The fourth proportional to 13,059.10, 19,588.65 and 4,739.10 is: 7,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,059.10 : 19,588.65 = 4,739.10 : x
  2. Step 2: Convert to fraction form
    13,059.10/19,588.65 = 4,739.10/x
  3. Step 3: Cross multiply
    13,059.10x = 19,588.65 × 4,739.10
  4. Step 4: Simplify right side
    13,059.10x = 92,832,571.22
  5. Step 5: Solve for x
    x = 92,832,571.22/13,059.10
  6. Step 6: Final answer
    x = 7,108.65

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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.