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Finding the Fourth Proportional to 21,597.32, 32,445.02 and 18,644.84

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Solution

The fourth proportional to 21,597.32, 32,445.02 and 18,644.84 is: 28,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,597.32 : 32,445.02 = 18,644.84 : x
  2. Step 2: Convert to fraction form
    21,597.32/32,445.02 = 18,644.84/x
  3. Step 3: Cross multiply
    21,597.32x = 32,445.02 × 18,644.84
  4. Step 4: Simplify right side
    21,597.32x = 604,932,206.70
  5. Step 5: Solve for x
    x = 604,932,206.70/21,597.32
  6. Step 6: Final answer
    x = 28,009.60

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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.