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Finding the Fourth Proportional to 38,598.52, 57,807.06 and 18,815.08

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Solution

The fourth proportional to 38,598.52, 57,807.06 and 18,815.08 is: 28,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,598.52 : 57,807.06 = 18,815.08 : x
  2. Step 2: Convert to fraction form
    38,598.52/57,807.06 = 18,815.08/x
  3. Step 3: Cross multiply
    38,598.52x = 57,807.06 × 18,815.08
  4. Step 4: Simplify right side
    38,598.52x = 1,087,644,458.46
  5. Step 5: Solve for x
    x = 1,087,644,458.46/38,598.52
  6. Step 6: Final answer
    x = 28,178.40

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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.