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Finding the Fourth Proportional to 8,818.71, 12,169.47 and 5,041.68

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Solution

The fourth proportional to 8,818.71, 12,169.47 and 5,041.68 is: 6,957.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.71 : 12,169.47 = 5,041.68 : x
  2. Step 2: Convert to fraction form
    8,818.71/12,169.47 = 5,041.68/x
  3. Step 3: Cross multiply
    8,818.71x = 12,169.47 × 5,041.68
  4. Step 4: Simplify right side
    8,818.71x = 61,354,573.51
  5. Step 5: Solve for x
    x = 61,354,573.51/8,818.71
  6. Step 6: Final answer
    x = 6,957.32

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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.