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Finding the Fourth Proportional to 48,911.74, 67,498.48 and 28,769.47

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Solution

The fourth proportional to 48,911.74, 67,498.48 and 28,769.47 is: 39,702.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,911.74 : 67,498.48 = 28,769.47 : x
  2. Step 2: Convert to fraction form
    48,911.74/67,498.48 = 28,769.47/x
  3. Step 3: Cross multiply
    48,911.74x = 67,498.48 × 28,769.47
  4. Step 4: Simplify right side
    48,911.74x = 1,941,895,495.41
  5. Step 5: Solve for x
    x = 1,941,895,495.41/48,911.74
  6. Step 6: Final answer
    x = 39,702.03

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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.