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Finding the Fourth Proportional to 70,053.69, 96,779.49 and 45,912.05

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Solution

The fourth proportional to 70,053.69, 96,779.49 and 45,912.05 is: 63,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,053.69 : 96,779.49 = 45,912.05 : x
  2. Step 2: Convert to fraction form
    70,053.69/96,779.49 = 45,912.05/x
  3. Step 3: Cross multiply
    70,053.69x = 96,779.49 × 45,912.05
  4. Step 4: Simplify right side
    70,053.69x = 4,443,344,299.96
  5. Step 5: Solve for x
    x = 4,443,344,299.96/70,053.69
  6. Step 6: Final answer
    x = 63,427.70

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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.