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Finding the Fourth Proportional to 70,662.42, 97,519.56 and 40,457.22

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Solution

The fourth proportional to 70,662.42, 97,519.56 and 40,457.22 is: 55,834.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,662.42 : 97,519.56 = 40,457.22 : x
  2. Step 2: Convert to fraction form
    70,662.42/97,519.56 = 40,457.22/x
  3. Step 3: Cross multiply
    70,662.42x = 97,519.56 × 40,457.22
  4. Step 4: Simplify right side
    70,662.42x = 3,945,370,293.22
  5. Step 5: Solve for x
    x = 3,945,370,293.22/70,662.42
  6. Step 6: Final answer
    x = 55,834.07

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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.