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Finding the Fourth Proportional to 15,867.40, 23,801.10 and 14,409.40

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Solution

The fourth proportional to 15,867.40, 23,801.10 and 14,409.40 is: 21,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,867.40 : 23,801.10 = 14,409.40 : x
  2. Step 2: Convert to fraction form
    15,867.40/23,801.10 = 14,409.40/x
  3. Step 3: Cross multiply
    15,867.40x = 23,801.10 × 14,409.40
  4. Step 4: Simplify right side
    15,867.40x = 342,959,570.34
  5. Step 5: Solve for x
    x = 342,959,570.34/15,867.40
  6. Step 6: Final answer
    x = 21,614.10

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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.