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Finding the Fourth Proportional to 22,130.63, 30,539.95 and 12,059.30

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Solution

The fourth proportional to 22,130.63, 30,539.95 and 12,059.30 is: 16,641.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,130.63 : 30,539.95 = 12,059.30 : x
  2. Step 2: Convert to fraction form
    22,130.63/30,539.95 = 12,059.30/x
  3. Step 3: Cross multiply
    22,130.63x = 30,539.95 × 12,059.30
  4. Step 4: Simplify right side
    22,130.63x = 368,290,419.04
  5. Step 5: Solve for x
    x = 368,290,419.04/22,130.63
  6. Step 6: Final answer
    x = 16,641.66

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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.