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Finding the Fourth Proportional to 55,599, 76,726.86 and 30,448.92

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Solution

The fourth proportional to 55,599, 76,726.86 and 30,448.92 is: 42,019.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,599 : 76,726.86 = 30,448.92 : x
  2. Step 2: Convert to fraction form
    55,599/76,726.86 = 30,448.92/x
  3. Step 3: Cross multiply
    55,599x = 76,726.86 × 30,448.92
  4. Step 4: Simplify right side
    55,599x = 2,336,250,021.99
  5. Step 5: Solve for x
    x = 2,336,250,021.99/55,599
  6. Step 6: Final answer
    x = 42,019.64

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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.