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Finding the Fourth Proportional to 19,602.90, 29,404.32 and 10,856.25

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Solution

The fourth proportional to 19,602.90, 29,404.32 and 10,856.25 is: 16,284.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,602.90 : 29,404.32 = 10,856.25 : x
  2. Step 2: Convert to fraction form
    19,602.90/29,404.32 = 10,856.25/x
  3. Step 3: Cross multiply
    19,602.90x = 29,404.32 × 10,856.25
  4. Step 4: Simplify right side
    19,602.90x = 319,220,649
  5. Step 5: Solve for x
    x = 319,220,649/19,602.90
  6. Step 6: Final answer
    x = 16,284.36

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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.