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Finding the Fourth Proportional to 93,063.50, 128,427.70 and 52,764.38

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Solution

The fourth proportional to 93,063.50, 128,427.70 and 52,764.38 is: 72,814.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,063.50 : 128,427.70 = 52,764.38 : x
  2. Step 2: Convert to fraction form
    93,063.50/128,427.70 = 52,764.38/x
  3. Step 3: Cross multiply
    93,063.50x = 128,427.70 × 52,764.38
  4. Step 4: Simplify right side
    93,063.50x = 6,776,407,965.33
  5. Step 5: Solve for x
    x = 6,776,407,965.33/93,063.50
  6. Step 6: Final answer
    x = 72,814.88

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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.