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Finding the Fourth Proportional to 63,137.70, 87,130.53 and 34,457.59

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Solution

The fourth proportional to 63,137.70, 87,130.53 and 34,457.59 is: 47,551.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,137.70 : 87,130.53 = 34,457.59 : x
  2. Step 2: Convert to fraction form
    63,137.70/87,130.53 = 34,457.59/x
  3. Step 3: Cross multiply
    63,137.70x = 87,130.53 × 34,457.59
  4. Step 4: Simplify right side
    63,137.70x = 3,002,307,471.28
  5. Step 5: Solve for x
    x = 3,002,307,471.28/63,137.70
  6. Step 6: Final answer
    x = 47,551.74

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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.