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Finding the Fourth Proportional to 70,341.94, 105,543.42 and 38,713.33

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Solution

The fourth proportional to 70,341.94, 105,543.42 and 38,713.33 is: 58,086.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,341.94 : 105,543.42 = 38,713.33 : x
  2. Step 2: Convert to fraction form
    70,341.94/105,543.42 = 38,713.33/x
  3. Step 3: Cross multiply
    70,341.94x = 105,543.42 × 38,713.33
  4. Step 4: Simplify right side
    70,341.94x = 4,085,937,247.79
  5. Step 5: Solve for x
    x = 4,085,937,247.79/70,341.94
  6. Step 6: Final answer
    x = 58,086.79

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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.