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Finding the Fourth Proportional to 64,857.84, 89,503.65 and 35,049.84

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Solution

The fourth proportional to 64,857.84, 89,503.65 and 35,049.84 is: 48,368.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,857.84 : 89,503.65 = 35,049.84 : x
  2. Step 2: Convert to fraction form
    64,857.84/89,503.65 = 35,049.84/x
  3. Step 3: Cross multiply
    64,857.84x = 89,503.65 × 35,049.84
  4. Step 4: Simplify right side
    64,857.84x = 3,137,088,611.92
  5. Step 5: Solve for x
    x = 3,137,088,611.92/64,857.84
  6. Step 6: Final answer
    x = 48,368.69

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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.