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Finding the Fourth Proportional to 15,602.67, 21,532.86 and 8,888.58

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Solution

The fourth proportional to 15,602.67, 21,532.86 and 8,888.58 is: 12,266.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,602.67 : 21,532.86 = 8,888.58 : x
  2. Step 2: Convert to fraction form
    15,602.67/21,532.86 = 8,888.58/x
  3. Step 3: Cross multiply
    15,602.67x = 21,532.86 × 8,888.58
  4. Step 4: Simplify right side
    15,602.67x = 191,396,548.74
  5. Step 5: Solve for x
    x = 191,396,548.74/15,602.67
  6. Step 6: Final answer
    x = 12,266.91

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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.