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Finding the Fourth Proportional to 8,726.86, 12,041.02 and 4,949.16

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Solution

The fourth proportional to 8,726.86, 12,041.02 and 4,949.16 is: 6,828.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.86 : 12,041.02 = 4,949.16 : x
  2. Step 2: Convert to fraction form
    8,726.86/12,041.02 = 4,949.16/x
  3. Step 3: Cross multiply
    8,726.86x = 12,041.02 × 4,949.16
  4. Step 4: Simplify right side
    8,726.86x = 59,592,934.54
  5. Step 5: Solve for x
    x = 59,592,934.54/8,726.86
  6. Step 6: Final answer
    x = 6,828.68

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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.