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Finding the Fourth Proportional to 52,466.40, 78,699.60 and 37,643.40

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Solution

The fourth proportional to 52,466.40, 78,699.60 and 37,643.40 is: 56,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,466.40 : 78,699.60 = 37,643.40 : x
  2. Step 2: Convert to fraction form
    52,466.40/78,699.60 = 37,643.40/x
  3. Step 3: Cross multiply
    52,466.40x = 78,699.60 × 37,643.40
  4. Step 4: Simplify right side
    52,466.40x = 2,962,520,522.64
  5. Step 5: Solve for x
    x = 2,962,520,522.64/52,466.40
  6. Step 6: Final answer
    x = 56,465.10

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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.