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Finding the Fourth Proportional to 48,897.68, 67,460.52 and 28,755.60

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Solution

The fourth proportional to 48,897.68, 67,460.52 and 28,755.60 is: 39,671.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,897.68 : 67,460.52 = 28,755.60 : x
  2. Step 2: Convert to fraction form
    48,897.68/67,460.52 = 28,755.60/x
  3. Step 3: Cross multiply
    48,897.68x = 67,460.52 × 28,755.60
  4. Step 4: Simplify right side
    48,897.68x = 1,939,867,728.91
  5. Step 5: Solve for x
    x = 1,939,867,728.91/48,897.68
  6. Step 6: Final answer
    x = 39,671.98

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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.