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Finding the Fourth Proportional to 14,304,061.20, 21,456,091.80 and 8,621,360.40

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Solution

The fourth proportional to 14,304,061.20, 21,456,091.80 and 8,621,360.40 is: 12,932,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,304,061.20 : 21,456,091.80 = 8,621,360.40 : x
  2. Step 2: Convert to fraction form
    14,304,061.20/21,456,091.80 = 8,621,360.40/x
  3. Step 3: Cross multiply
    14,304,061.20x = 21,456,091.80 × 8,621,360.40
  4. Step 4: Simplify right side
    14,304,061.20x = 184,980,700,183,284.75
  5. Step 5: Solve for x
    x = 184,980,700,183,284.75/14,304,061.20
  6. Step 6: Final answer
    x = 12,932,040.60

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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.