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Finding the Fourth Proportional to 10,654,893.60, 15,963,969.60 and 4,963,444.80

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Solution

The fourth proportional to 10,654,893.60, 15,963,969.60 and 4,963,444.80 is: 7,436,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,654,893.60 : 15,963,969.60 = 4,963,444.80 : x
  2. Step 2: Convert to fraction form
    10,654,893.60/15,963,969.60 = 4,963,444.80/x
  3. Step 3: Cross multiply
    10,654,893.60x = 15,963,969.60 × 4,963,444.80
  4. Step 4: Simplify right side
    10,654,893.60x = 79,236,281,898,478.08
  5. Step 5: Solve for x
    x = 79,236,281,898,478.08/10,654,893.60
  6. Step 6: Final answer
    x = 7,436,609.40

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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.