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Finding the Fourth Proportional to 70,322.96, 97,045.79 and 38,493.87

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Solution

The fourth proportional to 70,322.96, 97,045.79 and 38,493.87 is: 53,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,322.96 : 97,045.79 = 38,493.87 : x
  2. Step 2: Convert to fraction form
    70,322.96/97,045.79 = 38,493.87/x
  3. Step 3: Cross multiply
    70,322.96x = 97,045.79 × 38,493.87
  4. Step 4: Simplify right side
    70,322.96x = 3,735,668,024.31
  5. Step 5: Solve for x
    x = 3,735,668,024.31/70,322.96
  6. Step 6: Final answer
    x = 53,121.60

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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.