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Finding the Fourth Proportional to 34,457.54, 47,537.84 and 19,912.13

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Solution

The fourth proportional to 34,457.54, 47,537.84 and 19,912.13 is: 27,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,457.54 : 47,537.84 = 19,912.13 : x
  2. Step 2: Convert to fraction form
    34,457.54/47,537.84 = 19,912.13/x
  3. Step 3: Cross multiply
    34,457.54x = 47,537.84 × 19,912.13
  4. Step 4: Simplify right side
    34,457.54x = 946,579,312.75
  5. Step 5: Solve for x
    x = 946,579,312.75/34,457.54
  6. Step 6: Final answer
    x = 27,470.89

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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.