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Finding the Fourth Proportional to 48,482.89, 66,914.34 and 28,335.83

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Solution

The fourth proportional to 48,482.89, 66,914.34 and 28,335.83 is: 39,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,482.89 : 66,914.34 = 28,335.83 : x
  2. Step 2: Convert to fraction form
    48,482.89/66,914.34 = 28,335.83/x
  3. Step 3: Cross multiply
    48,482.89x = 66,914.34 × 28,335.83
  4. Step 4: Simplify right side
    48,482.89x = 1,896,073,464.96
  5. Step 5: Solve for x
    x = 1,896,073,464.96/48,482.89
  6. Step 6: Final answer
    x = 39,108.10

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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.