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Finding the Fourth Proportional to 61,224.60, 91,886.04 and 31,651.05

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Solution

The fourth proportional to 61,224.60, 91,886.04 and 31,651.05 is: 47,501.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,224.60 : 91,886.04 = 31,651.05 : x
  2. Step 2: Convert to fraction form
    61,224.60/91,886.04 = 31,651.05/x
  3. Step 3: Cross multiply
    61,224.60x = 91,886.04 × 31,651.05
  4. Step 4: Simplify right side
    61,224.60x = 2,908,289,646.34
  5. Step 5: Solve for x
    x = 2,908,289,646.34/61,224.60
  6. Step 6: Final answer
    x = 47,501.98

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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.