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Finding the Fourth Proportional to 28,082,886.10, 42,124,329.15 and 28,082,886.10

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Solution

The fourth proportional to 28,082,886.10, 42,124,329.15 and 28,082,886.10 is: 42,124,329.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082,886.10 : 42,124,329.15 = 28,082,886.10 : x
  2. Step 2: Convert to fraction form
    28,082,886.10/42,124,329.15 = 28,082,886.10/x
  3. Step 3: Cross multiply
    28,082,886.10x = 42,124,329.15 × 28,082,886.10
  4. Step 4: Simplify right side
    28,082,886.10x = 1,182,972,737,558,359.75
  5. Step 5: Solve for x
    x = 1,182,972,737,558,359.75/28,082,886.10
  6. Step 6: Final answer
    x = 42,124,329.15

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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.