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Finding the Fourth Proportional to 53,175, 73,383.36 and 29,303.40

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Solution

The fourth proportional to 53,175, 73,383.36 and 29,303.40 is: 40,439.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,175 : 73,383.36 = 29,303.40 : x
  2. Step 2: Convert to fraction form
    53,175/73,383.36 = 29,303.40/x
  3. Step 3: Cross multiply
    53,175x = 73,383.36 × 29,303.40
  4. Step 4: Simplify right side
    53,175x = 2,150,381,951.42
  5. Step 5: Solve for x
    x = 2,150,381,951.42/53,175
  6. Step 6: Final answer
    x = 40,439.72

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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.