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Finding the Fourth Proportional to 35,224,141.60, 52,885,978.80 and 21,787,213.60

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Solution

The fourth proportional to 35,224,141.60, 52,885,978.80 and 21,787,213.60 is: 32,711,602.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,224,141.60 : 52,885,978.80 = 21,787,213.60 : x
  2. Step 2: Convert to fraction form
    35,224,141.60/52,885,978.80 = 21,787,213.60/x
  3. Step 3: Cross multiply
    35,224,141.60x = 52,885,978.80 × 21,787,213.60
  4. Step 4: Simplify right side
    35,224,141.60x = 1,152,238,116,560,671.75
  5. Step 5: Solve for x
    x = 1,152,238,116,560,671.75/35,224,141.60
  6. Step 6: Final answer
    x = 32,711,602.45

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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.