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Finding the Fourth Proportional to 18,564,647.60, 27,846,971.40 and 16,969,012.40

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Solution

The fourth proportional to 18,564,647.60, 27,846,971.40 and 16,969,012.40 is: 25,453,518.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,564,647.60 : 27,846,971.40 = 16,969,012.40 : x
  2. Step 2: Convert to fraction form
    18,564,647.60/27,846,971.40 = 16,969,012.40/x
  3. Step 3: Cross multiply
    18,564,647.60x = 27,846,971.40 × 16,969,012.40
  4. Step 4: Simplify right side
    18,564,647.60x = 472,535,602,989,045.31
  5. Step 5: Solve for x
    x = 472,535,602,989,045.31/18,564,647.60
  6. Step 6: Final answer
    x = 25,453,518.60

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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.