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Finding the Fourth Proportional to 51,349.69, 70,859.14 and 28,992.25

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Solution

The fourth proportional to 51,349.69, 70,859.14 and 28,992.25 is: 40,007.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,349.69 : 70,859.14 = 28,992.25 : x
  2. Step 2: Convert to fraction form
    51,349.69/70,859.14 = 28,992.25/x
  3. Step 3: Cross multiply
    51,349.69x = 70,859.14 × 28,992.25
  4. Step 4: Simplify right side
    51,349.69x = 2,054,365,901.67
  5. Step 5: Solve for x
    x = 2,054,365,901.67/51,349.69
  6. Step 6: Final answer
    x = 40,007.37

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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.