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Finding the Fourth Proportional to 61,779.76, 85,256.22 and 33,485.56

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Solution

The fourth proportional to 61,779.76, 85,256.22 and 33,485.56 is: 46,210.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,779.76 : 85,256.22 = 33,485.56 : x
  2. Step 2: Convert to fraction form
    61,779.76/85,256.22 = 33,485.56/x
  3. Step 3: Cross multiply
    61,779.76x = 85,256.22 × 33,485.56
  4. Step 4: Simplify right side
    61,779.76x = 2,854,852,270.18
  5. Step 5: Solve for x
    x = 2,854,852,270.18/61,779.76
  6. Step 6: Final answer
    x = 46,210.15

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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.