Home / 53,320.11-79,971.95-17,782.05

Finding the Fourth Proportional to 53,320.11, 79,971.95 and 17,782.05

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Solution

The fourth proportional to 53,320.11, 79,971.95 and 17,782.05 is: 26,670.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,320.11 : 79,971.95 = 17,782.05 : x
  2. Step 2: Convert to fraction form
    53,320.11/79,971.95 = 17,782.05/x
  3. Step 3: Cross multiply
    53,320.11x = 79,971.95 × 17,782.05
  4. Step 4: Simplify right side
    53,320.11x = 1,422,065,124.59
  5. Step 5: Solve for x
    x = 1,422,065,124.59/53,320.11
  6. Step 6: Final answer
    x = 26,670.33

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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.