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Finding the Fourth Proportional to 63,394.88, 87,486.28 and 34,715.76

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Solution

The fourth proportional to 63,394.88, 87,486.28 and 34,715.76 is: 47,908.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,394.88 : 87,486.28 = 34,715.76 : x
  2. Step 2: Convert to fraction form
    63,394.88/87,486.28 = 34,715.76/x
  3. Step 3: Cross multiply
    63,394.88x = 87,486.28 × 34,715.76
  4. Step 4: Simplify right side
    63,394.88x = 3,037,152,699.77
  5. Step 5: Solve for x
    x = 3,037,152,699.77/63,394.88
  6. Step 6: Final answer
    x = 47,908.49

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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.