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Finding the Fourth Proportional to 70,588.37, 105,885.44 and 17,999.22

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Solution

The fourth proportional to 70,588.37, 105,885.44 and 17,999.22 is: 26,999.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,588.37 : 105,885.44 = 17,999.22 : x
  2. Step 2: Convert to fraction form
    70,588.37/105,885.44 = 17,999.22/x
  3. Step 3: Cross multiply
    70,588.37x = 105,885.44 × 17,999.22
  4. Step 4: Simplify right side
    70,588.37x = 1,905,855,329.36
  5. Step 5: Solve for x
    x = 1,905,855,329.36/70,588.37
  6. Step 6: Final answer
    x = 26,999.57

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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.