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Finding the Fourth Proportional to 64,403.20, 96,604.80 and 46,662.40

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Solution

The fourth proportional to 64,403.20, 96,604.80 and 46,662.40 is: 69,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,403.20 : 96,604.80 = 46,662.40 : x
  2. Step 2: Convert to fraction form
    64,403.20/96,604.80 = 46,662.40/x
  3. Step 3: Cross multiply
    64,403.20x = 96,604.80 × 46,662.40
  4. Step 4: Simplify right side
    64,403.20x = 4,507,811,819.52
  5. Step 5: Solve for x
    x = 4,507,811,819.52/64,403.20
  6. Step 6: Final answer
    x = 69,993.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.