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Finding the Fourth Proportional to 19,294.76, 28,937.77 and 9,294.41

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Solution

The fourth proportional to 19,294.76, 28,937.77 and 9,294.41 is: 13,939.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,294.76 : 28,937.77 = 9,294.41 : x
  2. Step 2: Convert to fraction form
    19,294.76/28,937.77 = 9,294.41/x
  3. Step 3: Cross multiply
    19,294.76x = 28,937.77 × 9,294.41
  4. Step 4: Simplify right side
    19,294.76x = 268,959,547.97
  5. Step 5: Solve for x
    x = 268,959,547.97/19,294.76
  6. Step 6: Final answer
    x = 13,939.51

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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.