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Finding the Fourth Proportional to 68,479.88, 94,513.08 and 41,630.80

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Solution

The fourth proportional to 68,479.88, 94,513.08 and 41,630.80 is: 57,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,479.88 : 94,513.08 = 41,630.80 : x
  2. Step 2: Convert to fraction form
    68,479.88/94,513.08 = 41,630.80/x
  3. Step 3: Cross multiply
    68,479.88x = 94,513.08 × 41,630.80
  4. Step 4: Simplify right side
    68,479.88x = 3,934,655,130.86
  5. Step 5: Solve for x
    x = 3,934,655,130.86/68,479.88
  6. Step 6: Final answer
    x = 57,457.10

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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.