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Finding the Fourth Proportional to 70,655.14, 97,503.71 and 38,825.79

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Solution

The fourth proportional to 70,655.14, 97,503.71 and 38,825.79 is: 53,579.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,655.14 : 97,503.71 = 38,825.79 : x
  2. Step 2: Convert to fraction form
    70,655.14/97,503.71 = 38,825.79/x
  3. Step 3: Cross multiply
    70,655.14x = 97,503.71 × 38,825.79
  4. Step 4: Simplify right side
    70,655.14x = 3,785,658,568.68
  5. Step 5: Solve for x
    x = 3,785,658,568.68/70,655.14
  6. Step 6: Final answer
    x = 53,579.38

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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.