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Finding the Fourth Proportional to 69,090.70, 95,366.58 and 53,156.38

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Solution

The fourth proportional to 69,090.70, 95,366.58 and 53,156.38 is: 73,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,090.70 : 95,366.58 = 53,156.38 : x
  2. Step 2: Convert to fraction form
    69,090.70/95,366.58 = 53,156.38/x
  3. Step 3: Cross multiply
    69,090.70x = 95,366.58 × 53,156.38
  4. Step 4: Simplify right side
    69,090.70x = 5,069,342,165.78
  5. Step 5: Solve for x
    x = 5,069,342,165.78/69,090.70
  6. Step 6: Final answer
    x = 73,372.28

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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.