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Finding the Fourth Proportional to 70,225.69, 105,349.03 and 25,849.07

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Solution

The fourth proportional to 70,225.69, 105,349.03 and 25,849.07 is: 38,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,225.69 : 105,349.03 = 25,849.07 : x
  2. Step 2: Convert to fraction form
    70,225.69/105,349.03 = 25,849.07/x
  3. Step 3: Cross multiply
    70,225.69x = 105,349.03 × 25,849.07
  4. Step 4: Simplify right side
    70,225.69x = 2,723,174,550.89
  5. Step 5: Solve for x
    x = 2,723,174,550.89/70,225.69
  6. Step 6: Final answer
    x = 38,777.47

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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.