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Finding the Fourth Proportional to 42,527.99, 63,801.09 and 12,948.27

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Solution

The fourth proportional to 42,527.99, 63,801.09 and 12,948.27 is: 19,425.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,527.99 : 63,801.09 = 12,948.27 : x
  2. Step 2: Convert to fraction form
    42,527.99/63,801.09 = 12,948.27/x
  3. Step 3: Cross multiply
    42,527.99x = 63,801.09 × 12,948.27
  4. Step 4: Simplify right side
    42,527.99x = 826,113,739.61
  5. Step 5: Solve for x
    x = 826,113,739.61/42,527.99
  6. Step 6: Final answer
    x = 19,425.18

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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.