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Finding the Fourth Proportional to 70,599.48, 105,737.94 and 33,689.40

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Solution

The fourth proportional to 70,599.48, 105,737.94 and 33,689.40 is: 50,457.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,599.48 : 105,737.94 = 33,689.40 : x
  2. Step 2: Convert to fraction form
    70,599.48/105,737.94 = 33,689.40/x
  3. Step 3: Cross multiply
    70,599.48x = 105,737.94 × 33,689.40
  4. Step 4: Simplify right side
    70,599.48x = 3,562,247,755.84
  5. Step 5: Solve for x
    x = 3,562,247,755.84/70,599.48
  6. Step 6: Final answer
    x = 50,457.14

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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.