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Finding the Fourth Proportional to 13,470.99, 20,206.49 and 4,705.98

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Solution

The fourth proportional to 13,470.99, 20,206.49 and 4,705.98 is: 7,058.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470.99 : 20,206.49 = 4,705.98 : x
  2. Step 2: Convert to fraction form
    13,470.99/20,206.49 = 4,705.98/x
  3. Step 3: Cross multiply
    13,470.99x = 20,206.49 × 4,705.98
  4. Step 4: Simplify right side
    13,470.99x = 95,091,314.28
  5. Step 5: Solve for x
    x = 95,091,314.28/13,470.99
  6. Step 6: Final answer
    x = 7,058.97

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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.