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Finding the Fourth Proportional to 8,714.47, 12,026.43 and 4,938.37

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Solution

The fourth proportional to 8,714.47, 12,026.43 and 4,938.37 is: 6,815.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,714.47 : 12,026.43 = 4,938.37 : x
  2. Step 2: Convert to fraction form
    8,714.47/12,026.43 = 4,938.37/x
  3. Step 3: Cross multiply
    8,714.47x = 12,026.43 × 4,938.37
  4. Step 4: Simplify right side
    8,714.47x = 59,390,900.99
  5. Step 5: Solve for x
    x = 59,390,900.99/8,714.47
  6. Step 6: Final answer
    x = 6,815.21

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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.