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Finding the Fourth Proportional to 10,510,852.80, 15,766,797.60 and 5,472,004.80

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Solution

The fourth proportional to 10,510,852.80, 15,766,797.60 and 5,472,004.80 is: 8,208,277.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,510,852.80 : 15,766,797.60 = 5,472,004.80 : x
  2. Step 2: Convert to fraction form
    10,510,852.80/15,766,797.60 = 5,472,004.80/x
  3. Step 3: Cross multiply
    10,510,852.80x = 15,766,797.60 × 5,472,004.80
  4. Step 4: Simplify right side
    10,510,852.80x = 86,275,992,147,828.47
  5. Step 5: Solve for x
    x = 86,275,992,147,828.47/10,510,852.80
  6. Step 6: Final answer
    x = 8,208,277.08

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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.