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Finding the Fourth Proportional to 28,966,643.04, 43,449,958.08 and 7,401,285.12

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Solution

The fourth proportional to 28,966,643.04, 43,449,958.08 and 7,401,285.12 is: 11,101,926.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,966,643.04 : 43,449,958.08 = 7,401,285.12 : x
  2. Step 2: Convert to fraction form
    28,966,643.04/43,449,958.08 = 7,401,285.12/x
  3. Step 3: Cross multiply
    28,966,643.04x = 43,449,958.08 × 7,401,285.12
  4. Step 4: Simplify right side
    28,966,643.04x = 321,585,528,202,127.75
  5. Step 5: Solve for x
    x = 321,585,528,202,127.75/28,966,643.04
  6. Step 6: Final answer
    x = 11,101,926.02

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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.