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Finding the Fourth Proportional to 61,798.78, 85,323.27 and 36,656.38

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Solution

The fourth proportional to 61,798.78, 85,323.27 and 36,656.38 is: 50,610.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,798.78 : 85,323.27 = 36,656.38 : x
  2. Step 2: Convert to fraction form
    61,798.78/85,323.27 = 36,656.38/x
  3. Step 3: Cross multiply
    61,798.78x = 85,323.27 × 36,656.38
  4. Step 4: Simplify right side
    61,798.78x = 3,127,642,207.96
  5. Step 5: Solve for x
    x = 3,127,642,207.96/61,798.78
  6. Step 6: Final answer
    x = 50,610.10

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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.