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Finding the Fourth Proportional to 18,009,323.25, 24,852,873.77 and 9,749,385.32

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Solution

The fourth proportional to 18,009,323.25, 24,852,873.77 and 9,749,385.32 is: 13,454,155.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009,323.25 : 24,852,873.77 = 9,749,385.32 : x
  2. Step 2: Convert to fraction form
    18,009,323.25/24,852,873.77 = 9,749,385.32/x
  3. Step 3: Cross multiply
    18,009,323.25x = 24,852,873.77 × 9,749,385.32
  4. Step 4: Simplify right side
    18,009,323.25x = 242,300,242,520,039.75
  5. Step 5: Solve for x
    x = 242,300,242,520,039.75/18,009,323.25
  6. Step 6: Final answer
    x = 13,454,155.89

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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.