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Finding the Fourth Proportional to 10,932,243.20, 16,398,364.80 and 4,866,963.20

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Solution

The fourth proportional to 10,932,243.20, 16,398,364.80 and 4,866,963.20 is: 7,300,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,932,243.20 : 16,398,364.80 = 4,866,963.20 : x
  2. Step 2: Convert to fraction form
    10,932,243.20/16,398,364.80 = 4,866,963.20/x
  3. Step 3: Cross multiply
    10,932,243.20x = 16,398,364.80 × 4,866,963.20
  4. Step 4: Simplify right side
    10,932,243.20x = 79,810,238,021,775.36
  5. Step 5: Solve for x
    x = 79,810,238,021,775.36/10,932,243.20
  6. Step 6: Final answer
    x = 7,300,444.80

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1.5x scale

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.