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Finding the Fourth Proportional to 73,407.21, 101,301.75 and 39,873.21

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Solution

The fourth proportional to 73,407.21, 101,301.75 and 39,873.21 is: 55,024.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,407.21 : 101,301.75 = 39,873.21 : x
  2. Step 2: Convert to fraction form
    73,407.21/101,301.75 = 39,873.21/x
  3. Step 3: Cross multiply
    73,407.21x = 101,301.75 × 39,873.21
  4. Step 4: Simplify right side
    73,407.21x = 4,039,225,951.12
  5. Step 5: Solve for x
    x = 4,039,225,951.12/73,407.21
  6. Step 6: Final answer
    x = 55,024.92

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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.