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Finding the Fourth Proportional to 10,572.20, 14,599.44 and 7,914.99

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Solution

The fourth proportional to 10,572.20, 14,599.44 and 7,914.99 is: 10,930.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.20 : 14,599.44 = 7,914.99 : x
  2. Step 2: Convert to fraction form
    10,572.20/14,599.44 = 7,914.99/x
  3. Step 3: Cross multiply
    10,572.20x = 14,599.44 × 7,914.99
  4. Step 4: Simplify right side
    10,572.20x = 115,554,421.61
  5. Step 5: Solve for x
    x = 115,554,421.61/10,572.20
  6. Step 6: Final answer
    x = 10,930.03

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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.