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Finding the Fourth Proportional to 15,602.97, 21,531.65 and 8,529.24

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Solution

The fourth proportional to 15,602.97, 21,531.65 and 8,529.24 is: 11,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,602.97 : 21,531.65 = 8,529.24 : x
  2. Step 2: Convert to fraction form
    15,602.97/21,531.65 = 8,529.24/x
  3. Step 3: Cross multiply
    15,602.97x = 21,531.65 × 8,529.24
  4. Step 4: Simplify right side
    15,602.97x = 183,648,567.80
  5. Step 5: Solve for x
    x = 183,648,567.80/15,602.97
  6. Step 6: Final answer
    x = 11,770.10

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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.