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Finding the Fourth Proportional to 46,599,955.94, 69,916,978.74 and 21,684,249.51

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Solution

The fourth proportional to 46,599,955.94, 69,916,978.74 and 21,684,249.51 is: 32,534,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,599,955.94 : 69,916,978.74 = 21,684,249.51 : x
  2. Step 2: Convert to fraction form
    46,599,955.94/69,916,978.74 = 21,684,249.51/x
  3. Step 3: Cross multiply
    46,599,955.94x = 69,916,978.74 × 21,684,249.51
  4. Step 4: Simplify right side
    46,599,955.94x = 1,516,097,211,983,525.50
  5. Step 5: Solve for x
    x = 1,516,097,211,983,525.50/46,599,955.94
  6. Step 6: Final answer
    x = 32,534,305.70

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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.