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Finding the Fourth Proportional to 7,262,816.80, 10,891,600.80 and 2,943,054.40

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Solution

The fourth proportional to 7,262,816.80, 10,891,600.80 and 2,943,054.40 is: 4,413,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,262,816.80 : 10,891,600.80 = 2,943,054.40 : x
  2. Step 2: Convert to fraction form
    7,262,816.80/10,891,600.80 = 2,943,054.40/x
  3. Step 3: Cross multiply
    7,262,816.80x = 10,891,600.80 × 2,943,054.40
  4. Step 4: Simplify right side
    7,262,816.80x = 32,054,573,657,483.52
  5. Step 5: Solve for x
    x = 32,054,573,657,483.52/7,262,816.80
  6. Step 6: Final answer
    x = 4,413,518.13

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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.