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Finding the Fourth Proportional to 64,465.07, 96,702.12 and 26,987.31

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Solution

The fourth proportional to 64,465.07, 96,702.12 and 26,987.31 is: 40,482.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,465.07 : 96,702.12 = 26,987.31 : x
  2. Step 2: Convert to fraction form
    64,465.07/96,702.12 = 26,987.31/x
  3. Step 3: Cross multiply
    64,465.07x = 96,702.12 × 26,987.31
  4. Step 4: Simplify right side
    64,465.07x = 2,609,730,090.10
  5. Step 5: Solve for x
    x = 2,609,730,090.10/64,465.07
  6. Step 6: Final answer
    x = 40,482.86

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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.