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Finding the Fourth Proportional to 52,032.40, 78,125.40 and 36,518.80

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Solution

The fourth proportional to 52,032.40, 78,125.40 and 36,518.80 is: 54,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,032.40 : 78,125.40 = 36,518.80 : x
  2. Step 2: Convert to fraction form
    52,032.40/78,125.40 = 36,518.80/x
  3. Step 3: Cross multiply
    52,032.40x = 78,125.40 × 36,518.80
  4. Step 4: Simplify right side
    52,032.40x = 2,853,045,857.52
  5. Step 5: Solve for x
    x = 2,853,045,857.52/52,032.40
  6. Step 6: Final answer
    x = 54,832.10

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1.5x scale

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.