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Finding the Fourth Proportional to 46,289.40, 69,027.63 and 45,868.40

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Solution

The fourth proportional to 46,289.40, 69,027.63 and 45,868.40 is: 68,399.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,289.40 : 69,027.63 = 45,868.40 : x
  2. Step 2: Convert to fraction form
    46,289.40/69,027.63 = 45,868.40/x
  3. Step 3: Cross multiply
    46,289.40x = 69,027.63 × 45,868.40
  4. Step 4: Simplify right side
    46,289.40x = 3,166,186,943.89
  5. Step 5: Solve for x
    x = 3,166,186,943.89/46,289.40
  6. Step 6: Final answer
    x = 68,399.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.