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Finding the Fourth Proportional to 45,843.12, 68,765.76 and 14,678.64

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Solution

The fourth proportional to 45,843.12, 68,765.76 and 14,678.64 is: 22,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,843.12 : 68,765.76 = 14,678.64 : x
  2. Step 2: Convert to fraction form
    45,843.12/68,765.76 = 14,678.64/x
  3. Step 3: Cross multiply
    45,843.12x = 68,765.76 × 14,678.64
  4. Step 4: Simplify right side
    45,843.12x = 1,009,387,835.37
  5. Step 5: Solve for x
    x = 1,009,387,835.37/45,843.12
  6. Step 6: Final answer
    x = 22,018.31

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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.