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Finding the Fourth Proportional to 17,602.64, 26,341.08 and 15,289.90

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Solution

The fourth proportional to 17,602.64, 26,341.08 and 15,289.90 is: 22,880.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,602.64 : 26,341.08 = 15,289.90 : x
  2. Step 2: Convert to fraction form
    17,602.64/26,341.08 = 15,289.90/x
  3. Step 3: Cross multiply
    17,602.64x = 26,341.08 × 15,289.90
  4. Step 4: Simplify right side
    17,602.64x = 402,752,479.09
  5. Step 5: Solve for x
    x = 402,752,479.09/17,602.64
  6. Step 6: Final answer
    x = 22,880.23

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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.