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Finding the Fourth Proportional to 50,953.80, 70,320.69 and 28,297.20

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Solution

The fourth proportional to 50,953.80, 70,320.69 and 28,297.20 is: 39,052.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,953.80 : 70,320.69 = 28,297.20 : x
  2. Step 2: Convert to fraction form
    50,953.80/70,320.69 = 28,297.20/x
  3. Step 3: Cross multiply
    50,953.80x = 70,320.69 × 28,297.20
  4. Step 4: Simplify right side
    50,953.80x = 1,989,878,629.07
  5. Step 5: Solve for x
    x = 1,989,878,629.07/50,953.80
  6. Step 6: Final answer
    x = 39,052.61

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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.