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Finding the Fourth Proportional to 17,816,602.60, 26,724,903.90 and 13,281,639.40

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Solution

The fourth proportional to 17,816,602.60, 26,724,903.90 and 13,281,639.40 is: 19,922,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,816,602.60 : 26,724,903.90 = 13,281,639.40 : x
  2. Step 2: Convert to fraction form
    17,816,602.60/26,724,903.90 = 13,281,639.40/x
  3. Step 3: Cross multiply
    17,816,602.60x = 26,724,903.90 × 13,281,639.40
  4. Step 4: Simplify right side
    17,816,602.60x = 354,950,536,599,453.62
  5. Step 5: Solve for x
    x = 354,950,536,599,453.62/17,816,602.60
  6. Step 6: Final answer
    x = 19,922,459.10

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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.