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Finding the Fourth Proportional to 28,366,917.60, 39,814,461.60 and 28,366,917.60

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Solution

The fourth proportional to 28,366,917.60, 39,814,461.60 and 28,366,917.60 is: 39,814,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366,917.60 : 39,814,461.60 = 28,366,917.60 : x
  2. Step 2: Convert to fraction form
    28,366,917.60/39,814,461.60 = 28,366,917.60/x
  3. Step 3: Cross multiply
    28,366,917.60x = 39,814,461.60 × 28,366,917.60
  4. Step 4: Simplify right side
    28,366,917.60x = 1,129,413,551,495,564.25
  5. Step 5: Solve for x
    x = 1,129,413,551,495,564.25/28,366,917.60
  6. Step 6: Final answer
    x = 39,814,461.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.