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Finding the Fourth Proportional to 10,859.22, 14,996.64 and 9,358.74

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Solution

The fourth proportional to 10,859.22, 14,996.64 and 9,358.74 is: 12,924.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.22 : 14,996.64 = 9,358.74 : x
  2. Step 2: Convert to fraction form
    10,859.22/14,996.64 = 9,358.74/x
  3. Step 3: Cross multiply
    10,859.22x = 14,996.64 × 9,358.74
  4. Step 4: Simplify right side
    10,859.22x = 140,349,654.63
  5. Step 5: Solve for x
    x = 140,349,654.63/10,859.22
  6. Step 6: Final answer
    x = 12,924.47

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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.