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Finding the Fourth Proportional to 55,597.60, 83,440.23 and 20,547.28

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Solution

The fourth proportional to 55,597.60, 83,440.23 and 20,547.28 is: 30,837.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,597.60 : 83,440.23 = 20,547.28 : x
  2. Step 2: Convert to fraction form
    55,597.60/83,440.23 = 20,547.28/x
  3. Step 3: Cross multiply
    55,597.60x = 83,440.23 × 20,547.28
  4. Step 4: Simplify right side
    55,597.60x = 1,714,469,769.07
  5. Step 5: Solve for x
    x = 1,714,469,769.07/55,597.60
  6. Step 6: Final answer
    x = 30,837.12

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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.