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Finding the Fourth Proportional to 55,872.81, 77,082.71 and 34,644.33

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Solution

The fourth proportional to 55,872.81, 77,082.71 and 34,644.33 is: 47,795.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,872.81 : 77,082.71 = 34,644.33 : x
  2. Step 2: Convert to fraction form
    55,872.81/77,082.71 = 34,644.33/x
  3. Step 3: Cross multiply
    55,872.81x = 77,082.71 × 34,644.33
  4. Step 4: Simplify right side
    55,872.81x = 2,670,478,669.31
  5. Step 5: Solve for x
    x = 2,670,478,669.31/55,872.81
  6. Step 6: Final answer
    x = 47,795.68

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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.