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Finding the Fourth Proportional to 65,714.98, 98,496.74 and 28,219.28

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Solution

The fourth proportional to 65,714.98, 98,496.74 and 28,219.28 is: 42,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,714.98 : 98,496.74 = 28,219.28 : x
  2. Step 2: Convert to fraction form
    65,714.98/98,496.74 = 28,219.28/x
  3. Step 3: Cross multiply
    65,714.98x = 98,496.74 × 28,219.28
  4. Step 4: Simplify right side
    65,714.98x = 2,779,507,085.15
  5. Step 5: Solve for x
    x = 2,779,507,085.15/65,714.98
  6. Step 6: Final answer
    x = 42,296.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.