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Finding the Fourth Proportional to 69,116.98, 103,674.80 and 31,666.44

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Solution

The fourth proportional to 69,116.98, 103,674.80 and 31,666.44 is: 47,499.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,116.98 : 103,674.80 = 31,666.44 : x
  2. Step 2: Convert to fraction form
    69,116.98/103,674.80 = 31,666.44/x
  3. Step 3: Cross multiply
    69,116.98x = 103,674.80 × 31,666.44
  4. Step 4: Simplify right side
    69,116.98x = 3,283,011,833.71
  5. Step 5: Solve for x
    x = 3,283,011,833.71/69,116.98
  6. Step 6: Final answer
    x = 47,499.35

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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.