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Finding the Fourth Proportional to 64,662,664.32, 97,009,439.44 and 21,532,241.52

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Solution

The fourth proportional to 64,662,664.32, 97,009,439.44 and 21,532,241.52 is: 32,303,504.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,662,664.32 : 97,009,439.44 = 21,532,241.52 : x
  2. Step 2: Convert to fraction form
    64,662,664.32/97,009,439.44 = 21,532,241.52/x
  3. Step 3: Cross multiply
    64,662,664.32x = 97,009,439.44 × 21,532,241.52
  4. Step 4: Simplify right side
    64,662,664.32x = 2,088,830,679,741,893.50
  5. Step 5: Solve for x
    x = 2,088,830,679,741,893.50/64,662,664.32
  6. Step 6: Final answer
    x = 32,303,504.68

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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.