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Finding the Fourth Proportional to 52,564.95, 72,541.35 and 28,692.90

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Solution

The fourth proportional to 52,564.95, 72,541.35 and 28,692.90 is: 39,597.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,564.95 : 72,541.35 = 28,692.90 : x
  2. Step 2: Convert to fraction form
    52,564.95/72,541.35 = 28,692.90/x
  3. Step 3: Cross multiply
    52,564.95x = 72,541.35 × 28,692.90
  4. Step 4: Simplify right side
    52,564.95x = 2,081,421,701.42
  5. Step 5: Solve for x
    x = 2,081,421,701.42/52,564.95
  6. Step 6: Final answer
    x = 39,597.14

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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.