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Finding the Fourth Proportional to 10,866,821.80, 16,300,232.70 and 3,292,803.40

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Solution

The fourth proportional to 10,866,821.80, 16,300,232.70 and 3,292,803.40 is: 4,939,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866,821.80 : 16,300,232.70 = 3,292,803.40 : x
  2. Step 2: Convert to fraction form
    10,866,821.80/16,300,232.70 = 3,292,803.40/x
  3. Step 3: Cross multiply
    10,866,821.80x = 16,300,232.70 × 3,292,803.40
  4. Step 4: Simplify right side
    10,866,821.80x = 53,673,461,655,351.18
  5. Step 5: Solve for x
    x = 53,673,461,655,351.18/10,866,821.80
  6. Step 6: Final answer
    x = 4,939,205.10

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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.