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Finding the Fourth Proportional to 22,699.63, 31,325.29 and 12,627.89

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Solution

The fourth proportional to 22,699.63, 31,325.29 and 12,627.89 is: 17,426.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,699.63 : 31,325.29 = 12,627.89 : x
  2. Step 2: Convert to fraction form
    22,699.63/31,325.29 = 12,627.89/x
  3. Step 3: Cross multiply
    22,699.63x = 31,325.29 × 12,627.89
  4. Step 4: Simplify right side
    22,699.63x = 395,572,316.34
  5. Step 5: Solve for x
    x = 395,572,316.34/22,699.63
  6. Step 6: Final answer
    x = 17,426.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.