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Finding the Fourth Proportional to 64,883.53, 97,316.87 and 20,514.76

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Solution

The fourth proportional to 64,883.53, 97,316.87 and 20,514.76 is: 30,769.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,883.53 : 97,316.87 = 20,514.76 : x
  2. Step 2: Convert to fraction form
    64,883.53/97,316.87 = 20,514.76/x
  3. Step 3: Cross multiply
    64,883.53x = 97,316.87 × 20,514.76
  4. Step 4: Simplify right side
    64,883.53x = 1,996,432,232.00
  5. Step 5: Solve for x
    x = 1,996,432,232.00/64,883.53
  6. Step 6: Final answer
    x = 30,769.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.