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Finding the Fourth Proportional to 61,025.78, 84,128.90 and 44,864.57

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Solution

The fourth proportional to 61,025.78, 84,128.90 and 44,864.57 is: 61,849.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,025.78 : 84,128.90 = 44,864.57 : x
  2. Step 2: Convert to fraction form
    61,025.78/84,128.90 = 44,864.57/x
  3. Step 3: Cross multiply
    61,025.78x = 84,128.90 × 44,864.57
  4. Step 4: Simplify right side
    61,025.78x = 3,774,406,923.07
  5. Step 5: Solve for x
    x = 3,774,406,923.07/61,025.78
  6. Step 6: Final answer
    x = 61,849.38

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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.