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Finding the Fourth Proportional to 61,784.94, 92,692.98 and 28,528.32

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Solution

The fourth proportional to 61,784.94, 92,692.98 and 28,528.32 is: 42,799.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,784.94 : 92,692.98 = 28,528.32 : x
  2. Step 2: Convert to fraction form
    61,784.94/92,692.98 = 28,528.32/x
  3. Step 3: Cross multiply
    61,784.94x = 92,692.98 × 28,528.32
  4. Step 4: Simplify right side
    61,784.94x = 2,644,374,995.19
  5. Step 5: Solve for x
    x = 2,644,374,995.19/61,784.94
  6. Step 6: Final answer
    x = 42,799.67

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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.