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Finding the Fourth Proportional to 65,570.72, 90,501.90 and 41,692.73

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Solution

The fourth proportional to 65,570.72, 90,501.90 and 41,692.73 is: 57,545.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,570.72 : 90,501.90 = 41,692.73 : x
  2. Step 2: Convert to fraction form
    65,570.72/90,501.90 = 41,692.73/x
  3. Step 3: Cross multiply
    65,570.72x = 90,501.90 × 41,692.73
  4. Step 4: Simplify right side
    65,570.72x = 3,773,271,281.19
  5. Step 5: Solve for x
    x = 3,773,271,281.19/65,570.72
  6. Step 6: Final answer
    x = 57,545.06

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1.5x scale

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.