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Finding the Fourth Proportional to 8,566.40, 11,818.86 and 5,030.48

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Solution

The fourth proportional to 8,566.40, 11,818.86 and 5,030.48 is: 6,940.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.40 : 11,818.86 = 5,030.48 : x
  2. Step 2: Convert to fraction form
    8,566.40/11,818.86 = 5,030.48/x
  3. Step 3: Cross multiply
    8,566.40x = 11,818.86 × 5,030.48
  4. Step 4: Simplify right side
    8,566.40x = 59,454,538.85
  5. Step 5: Solve for x
    x = 59,454,538.85/8,566.40
  6. Step 6: Final answer
    x = 6,940.43

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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.