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Finding the Fourth Proportional to 70,453.48, 97,189.86 and 53,657.32

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Solution

The fourth proportional to 70,453.48, 97,189.86 and 53,657.32 is: 74,019.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,453.48 : 97,189.86 = 53,657.32 : x
  2. Step 2: Convert to fraction form
    70,453.48/97,189.86 = 53,657.32/x
  3. Step 3: Cross multiply
    70,453.48x = 97,189.86 × 53,657.32
  4. Step 4: Simplify right side
    70,453.48x = 5,214,947,418.78
  5. Step 5: Solve for x
    x = 5,214,947,418.78/70,453.48
  6. Step 6: Final answer
    x = 74,019.73

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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.