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Finding the Fourth Proportional to 34,681.70, 47,860.74 and 18,766.16

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Solution

The fourth proportional to 34,681.70, 47,860.74 and 18,766.16 is: 25,897.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,681.70 : 47,860.74 = 18,766.16 : x
  2. Step 2: Convert to fraction form
    34,681.70/47,860.74 = 18,766.16/x
  3. Step 3: Cross multiply
    34,681.70x = 47,860.74 × 18,766.16
  4. Step 4: Simplify right side
    34,681.70x = 898,162,304.56
  5. Step 5: Solve for x
    x = 898,162,304.56/34,681.70
  6. Step 6: Final answer
    x = 25,897.30

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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.