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Finding the Fourth Proportional to 19,608.30, 27,059.61 and 10,655.88

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Solution

The fourth proportional to 19,608.30, 27,059.61 and 10,655.88 is: 14,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,608.30 : 27,059.61 = 10,655.88 : x
  2. Step 2: Convert to fraction form
    19,608.30/27,059.61 = 10,655.88/x
  3. Step 3: Cross multiply
    19,608.30x = 27,059.61 × 10,655.88
  4. Step 4: Simplify right side
    19,608.30x = 288,343,957.01
  5. Step 5: Solve for x
    x = 288,343,957.01/19,608.30
  6. Step 6: Final answer
    x = 14,705.20

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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.