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Finding the Fourth Proportional to 28,034,806.40, 41,985,854.40 and 19,010,499.20

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Solution

The fourth proportional to 28,034,806.40, 41,985,854.40 and 19,010,499.20 is: 28,470,753.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034,806.40 : 41,985,854.40 = 19,010,499.20 : x
  2. Step 2: Convert to fraction form
    28,034,806.40/41,985,854.40 = 19,010,499.20/x
  3. Step 3: Cross multiply
    28,034,806.40x = 41,985,854.40 × 19,010,499.20
  4. Step 4: Simplify right side
    28,034,806.40x = 798,172,051,482,516.38
  5. Step 5: Solve for x
    x = 798,172,051,482,516.38/28,034,806.40
  6. Step 6: Final answer
    x = 28,470,753.11

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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.