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Finding the Fourth Proportional to 65,171.84, 89,937.09 and 35,363.84

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Solution

The fourth proportional to 65,171.84, 89,937.09 and 35,363.84 is: 48,802.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,171.84 : 89,937.09 = 35,363.84 : x
  2. Step 2: Convert to fraction form
    65,171.84/89,937.09 = 35,363.84/x
  3. Step 3: Cross multiply
    65,171.84x = 89,937.09 × 35,363.84
  4. Step 4: Simplify right side
    65,171.84x = 3,180,520,411.14
  5. Step 5: Solve for x
    x = 3,180,520,411.14/65,171.84
  6. Step 6: Final answer
    x = 48,802.07

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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.