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Finding the Fourth Proportional to 73,858.80, 110,762.28 and 21,254.16

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Solution

The fourth proportional to 73,858.80, 110,762.28 and 21,254.16 is: 31,873.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,858.80 : 110,762.28 = 21,254.16 : x
  2. Step 2: Convert to fraction form
    73,858.80/110,762.28 = 21,254.16/x
  3. Step 3: Cross multiply
    73,858.80x = 110,762.28 × 21,254.16
  4. Step 4: Simplify right side
    73,858.80x = 2,354,159,221.08
  5. Step 5: Solve for x
    x = 2,354,159,221.08/73,858.80
  6. Step 6: Final answer
    x = 31,873.78

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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.