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Finding the Fourth Proportional to 64,419.45, 88,899.77 and 48,258.12

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Solution

The fourth proportional to 64,419.45, 88,899.77 and 48,258.12 is: 66,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,419.45 : 88,899.77 = 48,258.12 : x
  2. Step 2: Convert to fraction form
    64,419.45/88,899.77 = 48,258.12/x
  3. Step 3: Cross multiply
    64,419.45x = 88,899.77 × 48,258.12
  4. Step 4: Simplify right side
    64,419.45x = 4,290,135,527.34
  5. Step 5: Solve for x
    x = 4,290,135,527.34/64,419.45
  6. Step 6: Final answer
    x = 66,596.90

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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.