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Finding the Fourth Proportional to 70,457.80, 97,230.66 and 38,626.96

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Solution

The fourth proportional to 70,457.80, 97,230.66 and 38,626.96 is: 53,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,457.80 : 97,230.66 = 38,626.96 : x
  2. Step 2: Convert to fraction form
    70,457.80/97,230.66 = 38,626.96/x
  3. Step 3: Cross multiply
    70,457.80x = 97,230.66 × 38,626.96
  4. Step 4: Simplify right side
    70,457.80x = 3,755,724,814.59
  5. Step 5: Solve for x
    x = 3,755,724,814.59/70,457.80
  6. Step 6: Final answer
    x = 53,304.60

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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.