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Finding the Fourth Proportional to 29,715.97, 44,581.38 and 20,967.97

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Solution

The fourth proportional to 29,715.97, 44,581.38 and 20,967.97 is: 31,457.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,715.97 : 44,581.38 = 20,967.97 : x
  2. Step 2: Convert to fraction form
    29,715.97/44,581.38 = 20,967.97/x
  3. Step 3: Cross multiply
    29,715.97x = 44,581.38 × 20,967.97
  4. Step 4: Simplify right side
    29,715.97x = 934,781,038.40
  5. Step 5: Solve for x
    x = 934,781,038.40/29,715.97
  6. Step 6: Final answer
    x = 31,457.19

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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.