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Finding the Fourth Proportional to 34,787.43, 48,003.48 and 19,681.47

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Solution

The fourth proportional to 34,787.43, 48,003.48 and 19,681.47 is: 27,158.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,787.43 : 48,003.48 = 19,681.47 : x
  2. Step 2: Convert to fraction form
    34,787.43/48,003.48 = 19,681.47/x
  3. Step 3: Cross multiply
    34,787.43x = 48,003.48 × 19,681.47
  4. Step 4: Simplify right side
    34,787.43x = 944,779,051.52
  5. Step 5: Solve for x
    x = 944,779,051.52/34,787.43
  6. Step 6: Final answer
    x = 27,158.63

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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.