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Finding the Fourth Proportional to 69,032.55, 103,529.64 and 43,715.58

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Solution

The fourth proportional to 69,032.55, 103,529.64 and 43,715.58 is: 65,561.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,032.55 : 103,529.64 = 43,715.58 : x
  2. Step 2: Convert to fraction form
    69,032.55/103,529.64 = 43,715.58/x
  3. Step 3: Cross multiply
    69,032.55x = 103,529.64 × 43,715.58
  4. Step 4: Simplify right side
    69,032.55x = 4,525,858,259.79
  5. Step 5: Solve for x
    x = 4,525,858,259.79/69,032.55
  6. Step 6: Final answer
    x = 65,561.22

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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.