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Finding the Fourth Proportional to 70,682.42, 97,450.80 and 57,888.47

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Solution

The fourth proportional to 70,682.42, 97,450.80 and 57,888.47 is: 79,811.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,682.42 : 97,450.80 = 57,888.47 : x
  2. Step 2: Convert to fraction form
    70,682.42/97,450.80 = 57,888.47/x
  3. Step 3: Cross multiply
    70,682.42x = 97,450.80 × 57,888.47
  4. Step 4: Simplify right side
    70,682.42x = 5,641,277,738.82
  5. Step 5: Solve for x
    x = 5,641,277,738.82/70,682.42
  6. Step 6: Final answer
    x = 79,811.61

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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.