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Finding the Fourth Proportional to 35,178.01, 48,541.14 and 20,069.80

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Solution

The fourth proportional to 35,178.01, 48,541.14 and 20,069.80 is: 27,693.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,178.01 : 48,541.14 = 20,069.80 : x
  2. Step 2: Convert to fraction form
    35,178.01/48,541.14 = 20,069.80/x
  3. Step 3: Cross multiply
    35,178.01x = 48,541.14 × 20,069.80
  4. Step 4: Simplify right side
    35,178.01x = 974,210,971.57
  5. Step 5: Solve for x
    x = 974,210,971.57/35,178.01
  6. Step 6: Final answer
    x = 27,693.75

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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.