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Finding the Fourth Proportional to 19,687,905.60, 27,495,883.20 and 19,687,905.60

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Solution

The fourth proportional to 19,687,905.60, 27,495,883.20 and 19,687,905.60 is: 27,495,883.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687,905.60 : 27,495,883.20 = 19,687,905.60 : x
  2. Step 2: Convert to fraction form
    19,687,905.60/27,495,883.20 = 19,687,905.60/x
  3. Step 3: Cross multiply
    19,687,905.60x = 27,495,883.20 × 19,687,905.60
  4. Step 4: Simplify right side
    19,687,905.60x = 541,336,352,830,225.94
  5. Step 5: Solve for x
    x = 541,336,352,830,225.94/19,687,905.60
  6. Step 6: Final answer
    x = 27,495,883.20

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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.