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Finding the Fourth Proportional to 15,695.60, 23,521.80 and 10,415.60

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Solution

The fourth proportional to 15,695.60, 23,521.80 and 10,415.60 is: 15,609.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,695.60 : 23,521.80 = 10,415.60 : x
  2. Step 2: Convert to fraction form
    15,695.60/23,521.80 = 10,415.60/x
  3. Step 3: Cross multiply
    15,695.60x = 23,521.80 × 10,415.60
  4. Step 4: Simplify right side
    15,695.60x = 244,993,660.08
  5. Step 5: Solve for x
    x = 244,993,660.08/15,695.60
  6. Step 6: Final answer
    x = 15,609.07

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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.