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Finding the Fourth Proportional to 19,347.91, 26,700.42 and 10,851.92

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Solution

The fourth proportional to 19,347.91, 26,700.42 and 10,851.92 is: 14,975.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,347.91 : 26,700.42 = 10,851.92 : x
  2. Step 2: Convert to fraction form
    19,347.91/26,700.42 = 10,851.92/x
  3. Step 3: Cross multiply
    19,347.91x = 26,700.42 × 10,851.92
  4. Step 4: Simplify right side
    19,347.91x = 289,750,768.08
  5. Step 5: Solve for x
    x = 289,750,768.08/19,347.91
  6. Step 6: Final answer
    x = 14,975.82

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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.