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Finding the Fourth Proportional to 70,457.56, 97,231.46 and 38,625.80

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Solution

The fourth proportional to 70,457.56, 97,231.46 and 38,625.80 is: 53,303.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,457.56 : 97,231.46 = 38,625.80 : x
  2. Step 2: Convert to fraction form
    70,457.56/97,231.46 = 38,625.80/x
  3. Step 3: Cross multiply
    70,457.56x = 97,231.46 × 38,625.80
  4. Step 4: Simplify right side
    70,457.56x = 3,755,642,927.67
  5. Step 5: Solve for x
    x = 3,755,642,927.67/70,457.56
  6. Step 6: Final answer
    x = 53,303.62

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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.