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Finding the Fourth Proportional to 34,145, 47,120.30 and 19,038.62

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Solution

The fourth proportional to 34,145, 47,120.30 and 19,038.62 is: 26,273.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,145 : 47,120.30 = 19,038.62 : x
  2. Step 2: Convert to fraction form
    34,145/47,120.30 = 19,038.62/x
  3. Step 3: Cross multiply
    34,145x = 47,120.30 × 19,038.62
  4. Step 4: Simplify right side
    34,145x = 897,105,485.99
  5. Step 5: Solve for x
    x = 897,105,485.99/34,145
  6. Step 6: Final answer
    x = 26,273.41

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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.