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Finding the Fourth Proportional to 19,193,200.40, 28,733,813.40 and 18,633,328.40

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Solution

The fourth proportional to 19,193,200.40, 28,733,813.40 and 18,633,328.40 is: 27,895,638.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,193,200.40 : 28,733,813.40 = 18,633,328.40 : x
  2. Step 2: Convert to fraction form
    19,193,200.40/28,733,813.40 = 18,633,328.40/x
  3. Step 3: Cross multiply
    19,193,200.40x = 28,733,813.40 × 18,633,328.40
  4. Step 4: Simplify right side
    19,193,200.40x = 535,406,581,266,520.50
  5. Step 5: Solve for x
    x = 535,406,581,266,520.50/19,193,200.40
  6. Step 6: Final answer
    x = 27,895,638.57

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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.