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Finding the Fourth Proportional to 70,089.93, 96,723.90 and 39,460.55

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Solution

The fourth proportional to 70,089.93, 96,723.90 and 39,460.55 is: 54,455.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,089.93 : 96,723.90 = 39,460.55 : x
  2. Step 2: Convert to fraction form
    70,089.93/96,723.90 = 39,460.55/x
  3. Step 3: Cross multiply
    70,089.93x = 96,723.90 × 39,460.55
  4. Step 4: Simplify right side
    70,089.93x = 3,816,777,808.53
  5. Step 5: Solve for x
    x = 3,816,777,808.53/70,089.93
  6. Step 6: Final answer
    x = 54,455.44

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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.