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Finding the Fourth Proportional to 16,621,454.80, 24,924,809.40 and 7,641,384.40

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Solution

The fourth proportional to 16,621,454.80, 24,924,809.40 and 7,641,384.40 is: 11,458,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,621,454.80 : 24,924,809.40 = 7,641,384.40 : x
  2. Step 2: Convert to fraction form
    16,621,454.80/24,924,809.40 = 7,641,384.40/x
  3. Step 3: Cross multiply
    16,621,454.80x = 24,924,809.40 × 7,641,384.40
  4. Step 4: Simplify right side
    16,621,454.80x = 190,460,049,722,133.34
  5. Step 5: Solve for x
    x = 190,460,049,722,133.34/16,621,454.80
  6. Step 6: Final answer
    x = 11,458,687.10

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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.