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Finding the Fourth Proportional to 10,605.99, 14,636.06 and 5,890.11

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Solution

The fourth proportional to 10,605.99, 14,636.06 and 5,890.11 is: 8,128.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,605.99 : 14,636.06 = 5,890.11 : x
  2. Step 2: Convert to fraction form
    10,605.99/14,636.06 = 5,890.11/x
  3. Step 3: Cross multiply
    10,605.99x = 14,636.06 × 5,890.11
  4. Step 4: Simplify right side
    10,605.99x = 86,207,973.92
  5. Step 5: Solve for x
    x = 86,207,973.92/10,605.99
  6. Step 6: Final answer
    x = 8,128.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.