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Finding the Fourth Proportional to 21,332.66, 31,973.04 and 15,094.47

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Solution

The fourth proportional to 21,332.66, 31,973.04 and 15,094.47 is: 22,623.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.66 : 31,973.04 = 15,094.47 : x
  2. Step 2: Convert to fraction form
    21,332.66/31,973.04 = 15,094.47/x
  3. Step 3: Cross multiply
    21,332.66x = 31,973.04 × 15,094.47
  4. Step 4: Simplify right side
    21,332.66x = 482,616,093.09
  5. Step 5: Solve for x
    x = 482,616,093.09/21,332.66
  6. Step 6: Final answer
    x = 22,623.34

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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.