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Finding the Fourth Proportional to 7,454,926.40, 11,166,643.20 and 7,454,926.40

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Solution

The fourth proportional to 7,454,926.40, 11,166,643.20 and 7,454,926.40 is: 11,166,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,454,926.40 : 11,166,643.20 = 7,454,926.40 : x
  2. Step 2: Convert to fraction form
    7,454,926.40/11,166,643.20 = 7,454,926.40/x
  3. Step 3: Cross multiply
    7,454,926.40x = 11,166,643.20 × 7,454,926.40
  4. Step 4: Simplify right side
    7,454,926.40x = 83,246,503,191,060.48
  5. Step 5: Solve for x
    x = 83,246,503,191,060.48/7,454,926.40
  6. Step 6: Final answer
    x = 11,166,643.20

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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.