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Finding the Fourth Proportional to 15,698.70, 23,548.05 and 5,168.70

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Solution

The fourth proportional to 15,698.70, 23,548.05 and 5,168.70 is: 7,753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.70 : 23,548.05 = 5,168.70 : x
  2. Step 2: Convert to fraction form
    15,698.70/23,548.05 = 5,168.70/x
  3. Step 3: Cross multiply
    15,698.70x = 23,548.05 × 5,168.70
  4. Step 4: Simplify right side
    15,698.70x = 121,712,806.04
  5. Step 5: Solve for x
    x = 121,712,806.04/15,698.70
  6. Step 6: Final answer
    x = 7,753.05

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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.