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Finding the Fourth Proportional to 70,688.88, 97,548.48 and 38,857.68

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Solution

The fourth proportional to 70,688.88, 97,548.48 and 38,857.68 is: 53,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,688.88 : 97,548.48 = 38,857.68 : x
  2. Step 2: Convert to fraction form
    70,688.88/97,548.48 = 38,857.68/x
  3. Step 3: Cross multiply
    70,688.88x = 97,548.48 × 38,857.68
  4. Step 4: Simplify right side
    70,688.88x = 3,790,507,620.33
  5. Step 5: Solve for x
    x = 3,790,507,620.33/70,688.88
  6. Step 6: Final answer
    x = 53,622.40

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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.