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Finding the Fourth Proportional to 31,281,656.85, 46,922,485.28 and 31,281,656.85

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Solution

The fourth proportional to 31,281,656.85, 46,922,485.28 and 31,281,656.85 is: 46,922,485.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,281,656.85 : 46,922,485.28 = 31,281,656.85 : x
  2. Step 2: Convert to fraction form
    31,281,656.85/46,922,485.28 = 31,281,656.85/x
  3. Step 3: Cross multiply
    31,281,656.85x = 46,922,485.28 × 31,281,656.85
  4. Step 4: Simplify right side
    31,281,656.85x = 1,467,813,082,921,728
  5. Step 5: Solve for x
    x = 1,467,813,082,921,728/31,281,656.85
  6. Step 6: Final answer
    x = 46,922,485.28

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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.