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Finding the Fourth Proportional to 70,568.02, 97,379.47 and 38,736.71

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Solution

The fourth proportional to 70,568.02, 97,379.47 and 38,736.71 is: 53,454.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,568.02 : 97,379.47 = 38,736.71 : x
  2. Step 2: Convert to fraction form
    70,568.02/97,379.47 = 38,736.71/x
  3. Step 3: Cross multiply
    70,568.02x = 97,379.47 × 38,736.71
  4. Step 4: Simplify right side
    70,568.02x = 3,772,160,289.34
  5. Step 5: Solve for x
    x = 3,772,160,289.34/70,568.02
  6. Step 6: Final answer
    x = 53,454.25

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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.