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Finding the Fourth Proportional to 61,335.45, 92,003.16 and 19,782.45

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Solution

The fourth proportional to 61,335.45, 92,003.16 and 19,782.45 is: 29,673.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,335.45 : 92,003.16 = 19,782.45 : x
  2. Step 2: Convert to fraction form
    61,335.45/92,003.16 = 19,782.45/x
  3. Step 3: Cross multiply
    61,335.45x = 92,003.16 × 19,782.45
  4. Step 4: Simplify right side
    61,335.45x = 1,820,047,452.53
  5. Step 5: Solve for x
    x = 1,820,047,452.53/61,335.45
  6. Step 6: Final answer
    x = 29,673.67

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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.