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Finding the Fourth Proportional to 48,980.07, 67,573.02 and 31,978.86

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Solution

The fourth proportional to 48,980.07, 67,573.02 and 31,978.86 is: 44,118.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,980.07 : 67,573.02 = 31,978.86 : x
  2. Step 2: Convert to fraction form
    48,980.07/67,573.02 = 31,978.86/x
  3. Step 3: Cross multiply
    48,980.07x = 67,573.02 × 31,978.86
  4. Step 4: Simplify right side
    48,980.07x = 2,160,908,146.36
  5. Step 5: Solve for x
    x = 2,160,908,146.36/48,980.07
  6. Step 6: Final answer
    x = 44,118.11

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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.