Home / 53,057.91-79,580.79-19,779.06

Finding the Fourth Proportional to 53,057.91, 79,580.79 and 19,779.06

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Solution

The fourth proportional to 53,057.91, 79,580.79 and 19,779.06 is: 29,666.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,057.91 : 79,580.79 = 19,779.06 : x
  2. Step 2: Convert to fraction form
    53,057.91/79,580.79 = 19,779.06/x
  3. Step 3: Cross multiply
    53,057.91x = 79,580.79 × 19,779.06
  4. Step 4: Simplify right side
    53,057.91x = 1,574,033,322.68
  5. Step 5: Solve for x
    x = 1,574,033,322.68/53,057.91
  6. Step 6: Final answer
    x = 29,666.33

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1.5x scale

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.