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Finding the Fourth Proportional to 62,461.10, 93,691.65 and 20,908.10

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Solution

The fourth proportional to 62,461.10, 93,691.65 and 20,908.10 is: 31,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,461.10 : 93,691.65 = 20,908.10 : x
  2. Step 2: Convert to fraction form
    62,461.10/93,691.65 = 20,908.10/x
  3. Step 3: Cross multiply
    62,461.10x = 93,691.65 × 20,908.10
  4. Step 4: Simplify right side
    62,461.10x = 1,958,914,387.37
  5. Step 5: Solve for x
    x = 1,958,914,387.37/62,461.10
  6. Step 6: Final answer
    x = 31,362.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.