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Finding the Fourth Proportional to 9,996.48, 14,990.37 and 5,315.37

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Solution

The fourth proportional to 9,996.48, 14,990.37 and 5,315.37 is: 7,970.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,996.48 : 14,990.37 = 5,315.37 : x
  2. Step 2: Convert to fraction form
    9,996.48/14,990.37 = 5,315.37/x
  3. Step 3: Cross multiply
    9,996.48x = 14,990.37 × 5,315.37
  4. Step 4: Simplify right side
    9,996.48x = 79,679,362.99
  5. Step 5: Solve for x
    x = 79,679,362.99/9,996.48
  6. Step 6: Final answer
    x = 7,970.74

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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.