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Finding the Fourth Proportional to 15,765.12, 23,626.08 and 15,292.08

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Solution

The fourth proportional to 15,765.12, 23,626.08 and 15,292.08 is: 22,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.12 : 23,626.08 = 15,292.08 : x
  2. Step 2: Convert to fraction form
    15,765.12/23,626.08 = 15,292.08/x
  3. Step 3: Cross multiply
    15,765.12x = 23,626.08 × 15,292.08
  4. Step 4: Simplify right side
    15,765.12x = 361,291,905.45
  5. Step 5: Solve for x
    x = 361,291,905.45/15,765.12
  6. Step 6: Final answer
    x = 22,917.17

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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.