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Finding the Fourth Proportional to 15,292.56, 22,938.84 and 4,905.12

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Solution

The fourth proportional to 15,292.56, 22,938.84 and 4,905.12 is: 7,357.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,292.56 : 22,938.84 = 4,905.12 : x
  2. Step 2: Convert to fraction form
    15,292.56/22,938.84 = 4,905.12/x
  3. Step 3: Cross multiply
    15,292.56x = 22,938.84 × 4,905.12
  4. Step 4: Simplify right side
    15,292.56x = 112,517,762.86
  5. Step 5: Solve for x
    x = 112,517,762.86/15,292.56
  6. Step 6: Final answer
    x = 7,357.68

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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.