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Finding the Fourth Proportional to 47,689.83, 65,815.11 and 27,547.56

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Solution

The fourth proportional to 47,689.83, 65,815.11 and 27,547.56 is: 38,017.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,689.83 : 65,815.11 = 27,547.56 : x
  2. Step 2: Convert to fraction form
    47,689.83/65,815.11 = 27,547.56/x
  3. Step 3: Cross multiply
    47,689.83x = 65,815.11 × 27,547.56
  4. Step 4: Simplify right side
    47,689.83x = 1,813,045,691.63
  5. Step 5: Solve for x
    x = 1,813,045,691.63/47,689.83
  6. Step 6: Final answer
    x = 38,017.45

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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.