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Finding the Fourth Proportional to 55,904.50, 83,805.72 and 51,034.78

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Solution

The fourth proportional to 55,904.50, 83,805.72 and 51,034.78 is: 76,505.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,904.50 : 83,805.72 = 51,034.78 : x
  2. Step 2: Convert to fraction form
    55,904.50/83,805.72 = 51,034.78/x
  3. Step 3: Cross multiply
    55,904.50x = 83,805.72 × 51,034.78
  4. Step 4: Simplify right side
    55,904.50x = 4,277,006,482.94
  5. Step 5: Solve for x
    x = 4,277,006,482.94/55,904.50
  6. Step 6: Final answer
    x = 76,505.59

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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.