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Finding the Fourth Proportional to 21,762.60, 32,646.25 and 9,283.95

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Solution

The fourth proportional to 21,762.60, 32,646.25 and 9,283.95 is: 13,926.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762.60 : 32,646.25 = 9,283.95 : x
  2. Step 2: Convert to fraction form
    21,762.60/32,646.25 = 9,283.95/x
  3. Step 3: Cross multiply
    21,762.60x = 32,646.25 × 9,283.95
  4. Step 4: Simplify right side
    21,762.60x = 303,085,989.46
  5. Step 5: Solve for x
    x = 303,085,989.46/21,762.60
  6. Step 6: Final answer
    x = 13,926.92

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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.