Home / 53,600.64-80,400.95-18,521.16

Finding the Fourth Proportional to 53,600.64, 80,400.95 and 18,521.16

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Solution

The fourth proportional to 53,600.64, 80,400.95 and 18,521.16 is: 27,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,600.64 : 80,400.95 = 18,521.16 : x
  2. Step 2: Convert to fraction form
    53,600.64/80,400.95 = 18,521.16/x
  3. Step 3: Cross multiply
    53,600.64x = 80,400.95 × 18,521.16
  4. Step 4: Simplify right side
    53,600.64x = 1,489,118,859.10
  5. Step 5: Solve for x
    x = 1,489,118,859.10/53,600.64
  6. Step 6: Final answer
    x = 27,781.74

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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.