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Finding the Fourth Proportional to 51,866.40, 77,799.60 and 46,289.55

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Solution

The fourth proportional to 51,866.40, 77,799.60 and 46,289.55 is: 69,434.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,866.40 : 77,799.60 = 46,289.55 : x
  2. Step 2: Convert to fraction form
    51,866.40/77,799.60 = 46,289.55/x
  3. Step 3: Cross multiply
    51,866.40x = 77,799.60 × 46,289.55
  4. Step 4: Simplify right side
    51,866.40x = 3,601,308,474.18
  5. Step 5: Solve for x
    x = 3,601,308,474.18/51,866.40
  6. Step 6: Final answer
    x = 69,434.33

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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.