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Finding the Fourth Proportional to 65,495.84, 90,384.21 and 35,687.84

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Solution

The fourth proportional to 65,495.84, 90,384.21 and 35,687.84 is: 49,249.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,495.84 : 90,384.21 = 35,687.84 : x
  2. Step 2: Convert to fraction form
    65,495.84/90,384.21 = 35,687.84/x
  3. Step 3: Cross multiply
    65,495.84x = 90,384.21 × 35,687.84
  4. Step 4: Simplify right side
    65,495.84x = 3,225,616,773.09
  5. Step 5: Solve for x
    x = 3,225,616,773.09/65,495.84
  6. Step 6: Final answer
    x = 49,249.19

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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.