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Finding the Fourth Proportional to 64,963.60, 97,445.40 and 28,027.60

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Solution

The fourth proportional to 64,963.60, 97,445.40 and 28,027.60 is: 42,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,963.60 : 97,445.40 = 28,027.60 : x
  2. Step 2: Convert to fraction form
    64,963.60/97,445.40 = 28,027.60/x
  3. Step 3: Cross multiply
    64,963.60x = 97,445.40 × 28,027.60
  4. Step 4: Simplify right side
    64,963.60x = 2,731,160,693.04
  5. Step 5: Solve for x
    x = 2,731,160,693.04/64,963.60
  6. Step 6: Final answer
    x = 42,041.40

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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.