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Finding the Fourth Proportional to 34,219.48, 47,221.48 and 19,111.92

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Solution

The fourth proportional to 34,219.48, 47,221.48 and 19,111.92 is: 26,373.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,219.48 : 47,221.48 = 19,111.92 : x
  2. Step 2: Convert to fraction form
    34,219.48/47,221.48 = 19,111.92/x
  3. Step 3: Cross multiply
    34,219.48x = 47,221.48 × 19,111.92
  4. Step 4: Simplify right side
    34,219.48x = 902,493,148.04
  5. Step 5: Solve for x
    x = 902,493,148.04/34,219.48
  6. Step 6: Final answer
    x = 26,373.67

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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.