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Finding the Fourth Proportional to 61,207.30, 91,805.55 and 16,830.10

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Solution

The fourth proportional to 61,207.30, 91,805.55 and 16,830.10 is: 25,243.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,207.30 : 91,805.55 = 16,830.10 : x
  2. Step 2: Convert to fraction form
    61,207.30/91,805.55 = 16,830.10/x
  3. Step 3: Cross multiply
    61,207.30x = 91,805.55 × 16,830.10
  4. Step 4: Simplify right side
    61,207.30x = 1,545,096,587.06
  5. Step 5: Solve for x
    x = 1,545,096,587.06/61,207.30
  6. Step 6: Final answer
    x = 25,243.67

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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.