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Finding the Fourth Proportional to 15,903.40, 23,865.90 and 8,883.40

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Solution

The fourth proportional to 15,903.40, 23,865.90 and 8,883.40 is: 13,331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,903.40 : 23,865.90 = 8,883.40 : x
  2. Step 2: Convert to fraction form
    15,903.40/23,865.90 = 8,883.40/x
  3. Step 3: Cross multiply
    15,903.40x = 23,865.90 × 8,883.40
  4. Step 4: Simplify right side
    15,903.40x = 212,010,336.06
  5. Step 5: Solve for x
    x = 212,010,336.06/15,903.40
  6. Step 6: Final answer
    x = 13,331.13

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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.