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Finding the Fourth Proportional to 70,860.54, 97,787.54 and 39,029.44

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Solution

The fourth proportional to 70,860.54, 97,787.54 and 39,029.44 is: 53,860.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,860.54 : 97,787.54 = 39,029.44 : x
  2. Step 2: Convert to fraction form
    70,860.54/97,787.54 = 39,029.44/x
  3. Step 3: Cross multiply
    70,860.54x = 97,787.54 × 39,029.44
  4. Step 4: Simplify right side
    70,860.54x = 3,816,592,802.94
  5. Step 5: Solve for x
    x = 3,816,592,802.94/70,860.54
  6. Step 6: Final answer
    x = 53,860.62

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1.5x scale

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.