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Finding the Fourth Proportional to 42,406.72, 63,610.08 and 14,704.72

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Solution

The fourth proportional to 42,406.72, 63,610.08 and 14,704.72 is: 22,057.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,406.72 : 63,610.08 = 14,704.72 : x
  2. Step 2: Convert to fraction form
    42,406.72/63,610.08 = 14,704.72/x
  3. Step 3: Cross multiply
    42,406.72x = 63,610.08 × 14,704.72
  4. Step 4: Simplify right side
    42,406.72x = 935,368,415.58
  5. Step 5: Solve for x
    x = 935,368,415.58/42,406.72
  6. Step 6: Final answer
    x = 22,057.08

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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.