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Finding the Fourth Proportional to 17,591.32, 26,386.76 and 7,066

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Solution

The fourth proportional to 17,591.32, 26,386.76 and 7,066 is: 10,598.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,591.32 : 26,386.76 = 7,066 : x
  2. Step 2: Convert to fraction form
    17,591.32/26,386.76 = 7,066/x
  3. Step 3: Cross multiply
    17,591.32x = 26,386.76 × 7,066
  4. Step 4: Simplify right side
    17,591.32x = 186,448,846.16
  5. Step 5: Solve for x
    x = 186,448,846.16/17,591.32
  6. Step 6: Final answer
    x = 10,598.91

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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.