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Finding the Fourth Proportional to 16,615.12, 22,928.28 and 9,444.40

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Solution

The fourth proportional to 16,615.12, 22,928.28 and 9,444.40 is: 13,032.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,615.12 : 22,928.28 = 9,444.40 : x
  2. Step 2: Convert to fraction form
    16,615.12/22,928.28 = 9,444.40/x
  3. Step 3: Cross multiply
    16,615.12x = 22,928.28 × 9,444.40
  4. Step 4: Simplify right side
    16,615.12x = 216,543,847.63
  5. Step 5: Solve for x
    x = 216,543,847.63/16,615.12
  6. Step 6: Final answer
    x = 13,032.94

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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.