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Finding the Fourth Proportional to 8,652,893.55, 11,942,590.52 and 5,559,284.16

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Solution

The fourth proportional to 8,652,893.55, 11,942,590.52 and 5,559,284.16 is: 7,672,838.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652,893.55 : 11,942,590.52 = 5,559,284.16 : x
  2. Step 2: Convert to fraction form
    8,652,893.55/11,942,590.52 = 5,559,284.16/x
  3. Step 3: Cross multiply
    8,652,893.55x = 11,942,590.52 × 5,559,284.16
  4. Step 4: Simplify right side
    8,652,893.55x = 66,392,254,321,100.38
  5. Step 5: Solve for x
    x = 66,392,254,321,100.38/8,652,893.55
  6. Step 6: Final answer
    x = 7,672,838.45

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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.