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Finding the Fourth Proportional to 70,322.94, 97,045.80 and 38,493.87

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Solution

The fourth proportional to 70,322.94, 97,045.80 and 38,493.87 is: 53,121.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,322.94 : 97,045.80 = 38,493.87 : x
  2. Step 2: Convert to fraction form
    70,322.94/97,045.80 = 38,493.87/x
  3. Step 3: Cross multiply
    70,322.94x = 97,045.80 × 38,493.87
  4. Step 4: Simplify right side
    70,322.94x = 3,735,668,409.25
  5. Step 5: Solve for x
    x = 3,735,668,409.25/70,322.94
  6. Step 6: Final answer
    x = 53,121.62

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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.