Home / 19,693.02-29,543.93-7,212.80

Finding the Fourth Proportional to 19,693.02, 29,543.93 and 7,212.80

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Solution

The fourth proportional to 19,693.02, 29,543.93 and 7,212.80 is: 10,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,693.02 : 29,543.93 = 7,212.80 : x
  2. Step 2: Convert to fraction form
    19,693.02/29,543.93 = 7,212.80/x
  3. Step 3: Cross multiply
    19,693.02x = 29,543.93 × 7,212.80
  4. Step 4: Simplify right side
    19,693.02x = 213,094,274.52
  5. Step 5: Solve for x
    x = 213,094,274.52/19,693.02
  6. Step 6: Final answer
    x = 10,820.80

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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.