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Finding the Fourth Proportional to 29,598.80, 40,831.16 and 20,039.03

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Solution

The fourth proportional to 29,598.80, 40,831.16 and 20,039.03 is: 27,643.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,598.80 : 40,831.16 = 20,039.03 : x
  2. Step 2: Convert to fraction form
    29,598.80/40,831.16 = 20,039.03/x
  3. Step 3: Cross multiply
    29,598.80x = 40,831.16 × 20,039.03
  4. Step 4: Simplify right side
    29,598.80x = 818,216,636.02
  5. Step 5: Solve for x
    x = 818,216,636.02/29,598.80
  6. Step 6: Final answer
    x = 27,643.58

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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.