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Finding the Fourth Proportional to 7,852,815.15, 11,779,222.73 and 7,852,815.15

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Solution

The fourth proportional to 7,852,815.15, 11,779,222.73 and 7,852,815.15 is: 11,779,222.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,852,815.15 : 11,779,222.73 = 7,852,815.15 : x
  2. Step 2: Convert to fraction form
    7,852,815.15/11,779,222.73 = 7,852,815.15/x
  3. Step 3: Cross multiply
    7,852,815.15x = 11,779,222.73 × 7,852,815.15
  4. Step 4: Simplify right side
    7,852,815.15x = 92,500,058,670,104.28
  5. Step 5: Solve for x
    x = 92,500,058,670,104.28/7,852,815.15
  6. Step 6: Final answer
    x = 11,779,222.73

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Double scale
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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.