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Finding the Fourth Proportional to 38,303.40, 57,455.10 and 34,415.40

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Solution

The fourth proportional to 38,303.40, 57,455.10 and 34,415.40 is: 51,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,303.40 : 57,455.10 = 34,415.40 : x
  2. Step 2: Convert to fraction form
    38,303.40/57,455.10 = 34,415.40/x
  3. Step 3: Cross multiply
    38,303.40x = 57,455.10 × 34,415.40
  4. Step 4: Simplify right side
    38,303.40x = 1,977,340,248.54
  5. Step 5: Solve for x
    x = 1,977,340,248.54/38,303.40
  6. Step 6: Final answer
    x = 51,623.10

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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.