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Finding the Fourth Proportional to 70,057.56, 96,681.56 and 39,847.23

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Solution

The fourth proportional to 70,057.56, 96,681.56 and 39,847.23 is: 54,990.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,057.56 : 96,681.56 = 39,847.23 : x
  2. Step 2: Convert to fraction form
    70,057.56/96,681.56 = 39,847.23/x
  3. Step 3: Cross multiply
    70,057.56x = 96,681.56 × 39,847.23
  4. Step 4: Simplify right side
    70,057.56x = 3,852,492,358.08
  5. Step 5: Solve for x
    x = 3,852,492,358.08/70,057.56
  6. Step 6: Final answer
    x = 54,990.39

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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.