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Finding the Fourth Proportional to 19,257.71, 28,886.48 and 6,111.10

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Solution

The fourth proportional to 19,257.71, 28,886.48 and 6,111.10 is: 9,166.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,257.71 : 28,886.48 = 6,111.10 : x
  2. Step 2: Convert to fraction form
    19,257.71/28,886.48 = 6,111.10/x
  3. Step 3: Cross multiply
    19,257.71x = 28,886.48 × 6,111.10
  4. Step 4: Simplify right side
    19,257.71x = 176,528,167.93
  5. Step 5: Solve for x
    x = 176,528,167.93/19,257.71
  6. Step 6: Final answer
    x = 9,166.63

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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.