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Finding the Fourth Proportional to 70,047.55, 96,665.16 and 39,832.89

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Solution

The fourth proportional to 70,047.55, 96,665.16 and 39,832.89 is: 54,969.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,047.55 : 96,665.16 = 39,832.89 : x
  2. Step 2: Convert to fraction form
    70,047.55/96,665.16 = 39,832.89/x
  3. Step 3: Cross multiply
    70,047.55x = 96,665.16 × 39,832.89
  4. Step 4: Simplify right side
    70,047.55x = 3,850,452,685.11
  5. Step 5: Solve for x
    x = 3,850,452,685.11/70,047.55
  6. Step 6: Final answer
    x = 54,969.13

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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.