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Finding the Fourth Proportional to 21,897.88, 32,846.88 and 6,315.52

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Solution

The fourth proportional to 21,897.88, 32,846.88 and 6,315.52 is: 9,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,897.88 : 32,846.88 = 6,315.52 : x
  2. Step 2: Convert to fraction form
    21,897.88/32,846.88 = 6,315.52/x
  3. Step 3: Cross multiply
    21,897.88x = 32,846.88 × 6,315.52
  4. Step 4: Simplify right side
    21,897.88x = 207,445,127.58
  5. Step 5: Solve for x
    x = 207,445,127.58/21,897.88
  6. Step 6: Final answer
    x = 9,473.30

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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.