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Finding the Fourth Proportional to 8,798.11, 12,140.76 and 4,818.58

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Solution

The fourth proportional to 8,798.11, 12,140.76 and 4,818.58 is: 6,649.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.11 : 12,140.76 = 4,818.58 : x
  2. Step 2: Convert to fraction form
    8,798.11/12,140.76 = 4,818.58/x
  3. Step 3: Cross multiply
    8,798.11x = 12,140.76 × 4,818.58
  4. Step 4: Simplify right side
    8,798.11x = 58,501,223.32
  5. Step 5: Solve for x
    x = 58,501,223.32/8,798.11
  6. Step 6: Final answer
    x = 6,649.29

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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.