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Finding the Fourth Proportional to 19,190,848.80, 28,744,282.80 and 16,671,424.80

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Solution

The fourth proportional to 19,190,848.80, 28,744,282.80 and 16,671,424.80 is: 24,970,659.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190,848.80 : 28,744,282.80 = 16,671,424.80 : x
  2. Step 2: Convert to fraction form
    19,190,848.80/28,744,282.80 = 16,671,424.80/x
  3. Step 3: Cross multiply
    19,190,848.80x = 28,744,282.80 × 16,671,424.80
  4. Step 4: Simplify right side
    19,190,848.80x = 479,208,149,130,133.50
  5. Step 5: Solve for x
    x = 479,208,149,130,133.50/19,190,848.80
  6. Step 6: Final answer
    x = 24,970,659.41

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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.