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Finding the Fourth Proportional to 13,314,743.80, 19,960,451.70 and 9,041,054.20

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Solution

The fourth proportional to 13,314,743.80, 19,960,451.70 and 9,041,054.20 is: 13,553,661.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314,743.80 : 19,960,451.70 = 9,041,054.20 : x
  2. Step 2: Convert to fraction form
    13,314,743.80/19,960,451.70 = 9,041,054.20/x
  3. Step 3: Cross multiply
    13,314,743.80x = 19,960,451.70 × 9,041,054.20
  4. Step 4: Simplify right side
    13,314,743.80x = 180,463,525,676,182.12
  5. Step 5: Solve for x
    x = 180,463,525,676,182.12/13,314,743.80
  6. Step 6: Final answer
    x = 13,553,661.14

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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.