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Finding the Fourth Proportional to 70,328.63, 97,049.77 and 38,491.37

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Solution

The fourth proportional to 70,328.63, 97,049.77 and 38,491.37 is: 53,116.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,328.63 : 97,049.77 = 38,491.37 : x
  2. Step 2: Convert to fraction form
    70,328.63/97,049.77 = 38,491.37/x
  3. Step 3: Cross multiply
    70,328.63x = 97,049.77 × 38,491.37
  4. Step 4: Simplify right side
    70,328.63x = 3,735,578,605.48
  5. Step 5: Solve for x
    x = 3,735,578,605.48/70,328.63
  6. Step 6: Final answer
    x = 53,116.04

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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.