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Finding the Fourth Proportional to 30,280.56, 45,459.72 and 25,692.72

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Solution

The fourth proportional to 30,280.56, 45,459.72 and 25,692.72 is: 38,572.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,280.56 : 45,459.72 = 25,692.72 : x
  2. Step 2: Convert to fraction form
    30,280.56/45,459.72 = 25,692.72/x
  3. Step 3: Cross multiply
    30,280.56x = 45,459.72 × 25,692.72
  4. Step 4: Simplify right side
    30,280.56x = 1,167,983,857.24
  5. Step 5: Solve for x
    x = 1,167,983,857.24/30,280.56
  6. Step 6: Final answer
    x = 38,572.07

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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.