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Finding the Fourth Proportional to 7,779,344.64, 10,736,034.48 and 4,342,257.60

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Solution

The fourth proportional to 7,779,344.64, 10,736,034.48 and 4,342,257.60 is: 5,992,616.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779,344.64 : 10,736,034.48 = 4,342,257.60 : x
  2. Step 2: Convert to fraction form
    7,779,344.64/10,736,034.48 = 4,342,257.60/x
  3. Step 3: Cross multiply
    7,779,344.64x = 10,736,034.48 × 4,342,257.60
  4. Step 4: Simplify right side
    7,779,344.64x = 46,618,627,314,642.05
  5. Step 5: Solve for x
    x = 46,618,627,314,642.05/7,779,344.64
  6. Step 6: Final answer
    x = 5,992,616.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.