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Finding the Fourth Proportional to 28,062.98, 42,080.45 and 9,336.49

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Solution

The fourth proportional to 28,062.98, 42,080.45 and 9,336.49 is: 14,000.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,062.98 : 42,080.45 = 9,336.49 : x
  2. Step 2: Convert to fraction form
    28,062.98/42,080.45 = 9,336.49/x
  3. Step 3: Cross multiply
    28,062.98x = 42,080.45 × 9,336.49
  4. Step 4: Simplify right side
    28,062.98x = 392,883,490.22
  5. Step 5: Solve for x
    x = 392,883,490.22/28,062.98
  6. Step 6: Final answer
    x = 14,000.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.