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Finding the Fourth Proportional to 70,452.86, 97,222.68 and 38,621.07

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Solution

The fourth proportional to 70,452.86, 97,222.68 and 38,621.07 is: 53,295.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,452.86 : 97,222.68 = 38,621.07 : x
  2. Step 2: Convert to fraction form
    70,452.86/97,222.68 = 38,621.07/x
  3. Step 3: Cross multiply
    70,452.86x = 97,222.68 × 38,621.07
  4. Step 4: Simplify right side
    70,452.86x = 3,754,843,929.87
  5. Step 5: Solve for x
    x = 3,754,843,929.87/70,452.86
  6. Step 6: Final answer
    x = 53,295.84

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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.