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Finding the Fourth Proportional to 55,705.51, 76,923.03 and 37,866.88

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Solution

The fourth proportional to 55,705.51, 76,923.03 and 37,866.88 is: 52,289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,705.51 : 76,923.03 = 37,866.88 : x
  2. Step 2: Convert to fraction form
    55,705.51/76,923.03 = 37,866.88/x
  3. Step 3: Cross multiply
    55,705.51x = 76,923.03 × 37,866.88
  4. Step 4: Simplify right side
    55,705.51x = 2,912,835,146.25
  5. Step 5: Solve for x
    x = 2,912,835,146.25/55,705.51
  6. Step 6: Final answer
    x = 52,289.89

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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.