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Finding the Fourth Proportional to 69,800.94, 96,379.35 and 53,642.64

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Solution

The fourth proportional to 69,800.94, 96,379.35 and 53,642.64 is: 74,068.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,800.94 : 96,379.35 = 53,642.64 : x
  2. Step 2: Convert to fraction form
    69,800.94/96,379.35 = 53,642.64/x
  3. Step 3: Cross multiply
    69,800.94x = 96,379.35 × 53,642.64
  4. Step 4: Simplify right side
    69,800.94x = 5,170,042,775.48
  5. Step 5: Solve for x
    x = 5,170,042,775.48/69,800.94
  6. Step 6: Final answer
    x = 74,068.38

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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.