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Finding the Fourth Proportional to 53,980.56, 74,491.50 and 29,450.46

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Solution

The fourth proportional to 53,980.56, 74,491.50 and 29,450.46 is: 40,640.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,980.56 : 74,491.50 = 29,450.46 : x
  2. Step 2: Convert to fraction form
    53,980.56/74,491.50 = 29,450.46/x
  3. Step 3: Cross multiply
    53,980.56x = 74,491.50 × 29,450.46
  4. Step 4: Simplify right side
    53,980.56x = 2,193,808,941.09
  5. Step 5: Solve for x
    x = 2,193,808,941.09/53,980.56
  6. Step 6: Final answer
    x = 40,640.72

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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.