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Finding the Fourth Proportional to 64,962.60, 97,443.90 and 28,026.60

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Solution

The fourth proportional to 64,962.60, 97,443.90 and 28,026.60 is: 42,039.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,962.60 : 97,443.90 = 28,026.60 : x
  2. Step 2: Convert to fraction form
    64,962.60/97,443.90 = 28,026.60/x
  3. Step 3: Cross multiply
    64,962.60x = 97,443.90 × 28,026.60
  4. Step 4: Simplify right side
    64,962.60x = 2,731,021,207.74
  5. Step 5: Solve for x
    x = 2,731,021,207.74/64,962.60
  6. Step 6: Final answer
    x = 42,039.90

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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.