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Finding the Fourth Proportional to 70,480.56, 97,257.16 and 39,852.16

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Solution

The fourth proportional to 70,480.56, 97,257.16 and 39,852.16 is: 54,992.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,480.56 : 97,257.16 = 39,852.16 : x
  2. Step 2: Convert to fraction form
    70,480.56/97,257.16 = 39,852.16/x
  3. Step 3: Cross multiply
    70,480.56x = 97,257.16 × 39,852.16
  4. Step 4: Simplify right side
    70,480.56x = 3,875,907,558.69
  5. Step 5: Solve for x
    x = 3,875,907,558.69/70,480.56
  6. Step 6: Final answer
    x = 54,992.58

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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.