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Finding the Fourth Proportional to 9,843,166.80, 14,792,743.80 and 8,611,448.40

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Solution

The fourth proportional to 9,843,166.80, 14,792,743.80 and 8,611,448.40 is: 12,941,663.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,843,166.80 : 14,792,743.80 = 8,611,448.40 : x
  2. Step 2: Convert to fraction form
    9,843,166.80/14,792,743.80 = 8,611,448.40/x
  3. Step 3: Cross multiply
    9,843,166.80x = 14,792,743.80 × 8,611,448.40
  4. Step 4: Simplify right side
    9,843,166.80x = 127,386,949,928,119.94
  5. Step 5: Solve for x
    x = 127,386,949,928,119.94/9,843,166.80
  6. Step 6: Final answer
    x = 12,941,663.24

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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.