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Finding the Fourth Proportional to 15,809.37, 23,710.41 and 7,039.50

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Solution

The fourth proportional to 15,809.37, 23,710.41 and 7,039.50 is: 10,557.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,809.37 : 23,710.41 = 7,039.50 : x
  2. Step 2: Convert to fraction form
    15,809.37/23,710.41 = 7,039.50/x
  3. Step 3: Cross multiply
    15,809.37x = 23,710.41 × 7,039.50
  4. Step 4: Simplify right side
    15,809.37x = 166,909,431.20
  5. Step 5: Solve for x
    x = 166,909,431.20/15,809.37
  6. Step 6: Final answer
    x = 10,557.63

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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.