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Finding the Fourth Proportional to 67,878.24, 93,672.48 and 37,663.68

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Solution

The fourth proportional to 67,878.24, 93,672.48 and 37,663.68 is: 51,976.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,878.24 : 93,672.48 = 37,663.68 : x
  2. Step 2: Convert to fraction form
    67,878.24/93,672.48 = 37,663.68/x
  3. Step 3: Cross multiply
    67,878.24x = 93,672.48 × 37,663.68
  4. Step 4: Simplify right side
    67,878.24x = 3,528,050,311.53
  5. Step 5: Solve for x
    x = 3,528,050,311.53/67,878.24
  6. Step 6: Final answer
    x = 51,976.16

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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.