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Finding the Fourth Proportional to 65,993.86, 91,070.76 and 35,779.24

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Solution

The fourth proportional to 65,993.86, 91,070.76 and 35,779.24 is: 49,374.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,993.86 : 91,070.76 = 35,779.24 : x
  2. Step 2: Convert to fraction form
    65,993.86/91,070.76 = 35,779.24/x
  3. Step 3: Cross multiply
    65,993.86x = 91,070.76 × 35,779.24
  4. Step 4: Simplify right side
    65,993.86x = 3,258,442,579.02
  5. Step 5: Solve for x
    x = 3,258,442,579.02/65,993.86
  6. Step 6: Final answer
    x = 49,374.94

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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.