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Finding the Fourth Proportional to 70,191.65, 105,328.94 and 36,914.29

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Solution

The fourth proportional to 70,191.65, 105,328.94 and 36,914.29 is: 55,393.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,191.65 : 105,328.94 = 36,914.29 : x
  2. Step 2: Convert to fraction form
    70,191.65/105,328.94 = 36,914.29/x
  3. Step 3: Cross multiply
    70,191.65x = 105,328.94 × 36,914.29
  4. Step 4: Simplify right side
    70,191.65x = 3,888,143,036.55
  5. Step 5: Solve for x
    x = 3,888,143,036.55/70,191.65
  6. Step 6: Final answer
    x = 55,393.24

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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.