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Finding the Fourth Proportional to 46,308, 63,920.70 and 28,858.98

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Solution

The fourth proportional to 46,308, 63,920.70 and 28,858.98 is: 39,835.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,308 : 63,920.70 = 28,858.98 : x
  2. Step 2: Convert to fraction form
    46,308/63,920.70 = 28,858.98/x
  3. Step 3: Cross multiply
    46,308x = 63,920.70 × 28,858.98
  4. Step 4: Simplify right side
    46,308x = 1,844,686,202.89
  5. Step 5: Solve for x
    x = 1,844,686,202.89/46,308
  6. Step 6: Final answer
    x = 39,835.15

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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.