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Finding the Fourth Proportional to 14,204.31, 19,602.05 and 7,917.09

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Solution

The fourth proportional to 14,204.31, 19,602.05 and 7,917.09 is: 10,925.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,204.31 : 19,602.05 = 7,917.09 : x
  2. Step 2: Convert to fraction form
    14,204.31/19,602.05 = 7,917.09/x
  3. Step 3: Cross multiply
    14,204.31x = 19,602.05 × 7,917.09
  4. Step 4: Simplify right side
    14,204.31x = 155,191,154.45
  5. Step 5: Solve for x
    x = 155,191,154.45/14,204.31
  6. Step 6: Final answer
    x = 10,925.64

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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.