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Finding the Fourth Proportional to 52,574.40, 72,553.80 and 28,702.08

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Solution

The fourth proportional to 52,574.40, 72,553.80 and 28,702.08 is: 39,609.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,574.40 : 72,553.80 = 28,702.08 : x
  2. Step 2: Convert to fraction form
    52,574.40/72,553.80 = 28,702.08/x
  3. Step 3: Cross multiply
    52,574.40x = 72,553.80 × 28,702.08
  4. Step 4: Simplify right side
    52,574.40x = 2,082,444,971.90
  5. Step 5: Solve for x
    x = 2,082,444,971.90/52,574.40
  6. Step 6: Final answer
    x = 39,609.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.