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Finding the Fourth Proportional to 61,972.50, 85,522.16 and 33,678.12

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Solution

The fourth proportional to 61,972.50, 85,522.16 and 33,678.12 is: 46,475.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,972.50 : 85,522.16 = 33,678.12 : x
  2. Step 2: Convert to fraction form
    61,972.50/85,522.16 = 33,678.12/x
  3. Step 3: Cross multiply
    61,972.50x = 85,522.16 × 33,678.12
  4. Step 4: Simplify right side
    61,972.50x = 2,880,225,567.14
  5. Step 5: Solve for x
    x = 2,880,225,567.14/61,972.50
  6. Step 6: Final answer
    x = 46,475.87

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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.