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Finding the Fourth Proportional to 70,823.73, 97,737.12 and 38,992.65

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Solution

The fourth proportional to 70,823.73, 97,737.12 and 38,992.65 is: 53,810.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,823.73 : 97,737.12 = 38,992.65 : x
  2. Step 2: Convert to fraction form
    70,823.73/97,737.12 = 38,992.65/x
  3. Step 3: Cross multiply
    70,823.73x = 97,737.12 × 38,992.65
  4. Step 4: Simplify right side
    70,823.73x = 3,811,029,312.17
  5. Step 5: Solve for x
    x = 3,811,029,312.17/70,823.73
  6. Step 6: Final answer
    x = 53,810.06

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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.