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Finding the Fourth Proportional to 9,168,562.80, 13,752,844.20 and 8,176,539.60

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Solution

The fourth proportional to 9,168,562.80, 13,752,844.20 and 8,176,539.60 is: 12,264,809.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168,562.80 : 13,752,844.20 = 8,176,539.60 : x
  2. Step 2: Convert to fraction form
    9,168,562.80/13,752,844.20 = 8,176,539.60/x
  3. Step 3: Cross multiply
    9,168,562.80x = 13,752,844.20 × 8,176,539.60
  4. Step 4: Simplify right side
    9,168,562.80x = 112,450,675,213,930.31
  5. Step 5: Solve for x
    x = 112,450,675,213,930.31/9,168,562.80
  6. Step 6: Final answer
    x = 12,264,809.40

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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.