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Finding the Fourth Proportional to 61,499.67, 84,830.54 and 38,799.02

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Solution

The fourth proportional to 61,499.67, 84,830.54 and 38,799.02 is: 53,518.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,499.67 : 84,830.54 = 38,799.02 : x
  2. Step 2: Convert to fraction form
    61,499.67/84,830.54 = 38,799.02/x
  3. Step 3: Cross multiply
    61,499.67x = 84,830.54 × 38,799.02
  4. Step 4: Simplify right side
    61,499.67x = 3,291,341,199.92
  5. Step 5: Solve for x
    x = 3,291,341,199.92/61,499.67
  6. Step 6: Final answer
    x = 53,518.03

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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.