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Finding the Fourth Proportional to 73,050.64, 100,809.84 and 39,516.64

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Solution

The fourth proportional to 73,050.64, 100,809.84 and 39,516.64 is: 54,532.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,050.64 : 100,809.84 = 39,516.64 : x
  2. Step 2: Convert to fraction form
    73,050.64/100,809.84 = 39,516.64/x
  3. Step 3: Cross multiply
    73,050.64x = 100,809.84 × 39,516.64
  4. Step 4: Simplify right side
    73,050.64x = 3,983,666,155.74
  5. Step 5: Solve for x
    x = 3,983,666,155.74/73,050.64
  6. Step 6: Final answer
    x = 54,532.94

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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.