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Finding the Fourth Proportional to 23,602.98, 32,570.91 and 12,990.56

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Solution

The fourth proportional to 23,602.98, 32,570.91 and 12,990.56 is: 17,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,602.98 : 32,570.91 = 12,990.56 : x
  2. Step 2: Convert to fraction form
    23,602.98/32,570.91 = 12,990.56/x
  3. Step 3: Cross multiply
    23,602.98x = 32,570.91 × 12,990.56
  4. Step 4: Simplify right side
    23,602.98x = 423,114,197.76
  5. Step 5: Solve for x
    x = 423,114,197.76/23,602.98
  6. Step 6: Final answer
    x = 17,926.30

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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.