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Finding the Fourth Proportional to 68,576.84, 94,640.64 and 38,364.92

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Solution

The fourth proportional to 68,576.84, 94,640.64 and 38,364.92 is: 52,946.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,576.84 : 94,640.64 = 38,364.92 : x
  2. Step 2: Convert to fraction form
    68,576.84/94,640.64 = 38,364.92/x
  3. Step 3: Cross multiply
    68,576.84x = 94,640.64 × 38,364.92
  4. Step 4: Simplify right side
    68,576.84x = 3,630,880,582.35
  5. Step 5: Solve for x
    x = 3,630,880,582.35/68,576.84
  6. Step 6: Final answer
    x = 52,946.16

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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.