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Finding the Fourth Proportional to 70,095.95, 96,731.15 and 39,880.62

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Solution

The fourth proportional to 70,095.95, 96,731.15 and 39,880.62 is: 55,034.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,095.95 : 96,731.15 = 39,880.62 : x
  2. Step 2: Convert to fraction form
    70,095.95/96,731.15 = 39,880.62/x
  3. Step 3: Cross multiply
    70,095.95x = 96,731.15 × 39,880.62
  4. Step 4: Simplify right side
    70,095.95x = 3,857,698,335.01
  5. Step 5: Solve for x
    x = 3,857,698,335.01/70,095.95
  6. Step 6: Final answer
    x = 55,034.54

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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.