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Finding the Fourth Proportional to 16,389,800.80, 24,584,701.20 and 7,886,744.80

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Solution

The fourth proportional to 16,389,800.80, 24,584,701.20 and 7,886,744.80 is: 11,830,117.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,389,800.80 : 24,584,701.20 = 7,886,744.80 : x
  2. Step 2: Convert to fraction form
    16,389,800.80/24,584,701.20 = 7,886,744.80/x
  3. Step 3: Cross multiply
    16,389,800.80x = 24,584,701.20 × 7,886,744.80
  4. Step 4: Simplify right side
    16,389,800.80x = 193,893,264,348,653.75
  5. Step 5: Solve for x
    x = 193,893,264,348,653.75/16,389,800.80
  6. Step 6: Final answer
    x = 11,830,117.20

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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.