Home / 62,779.32-86,636.79-34,485.21

Finding the Fourth Proportional to 62,779.32, 86,636.79 and 34,485.21

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Solution

The fourth proportional to 62,779.32, 86,636.79 and 34,485.21 is: 47,590.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,779.32 : 86,636.79 = 34,485.21 : x
  2. Step 2: Convert to fraction form
    62,779.32/86,636.79 = 34,485.21/x
  3. Step 3: Cross multiply
    62,779.32x = 86,636.79 × 34,485.21
  4. Step 4: Simplify right side
    62,779.32x = 2,987,687,896.88
  5. Step 5: Solve for x
    x = 2,987,687,896.88/62,779.32
  6. Step 6: Final answer
    x = 47,590.32

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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.