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Finding the Fourth Proportional to 35,357.68, 48,748.30 and 28,960.71

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Solution

The fourth proportional to 35,357.68, 48,748.30 and 28,960.71 is: 39,928.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,357.68 : 48,748.30 = 28,960.71 : x
  2. Step 2: Convert to fraction form
    35,357.68/48,748.30 = 28,960.71/x
  3. Step 3: Cross multiply
    35,357.68x = 48,748.30 × 28,960.71
  4. Step 4: Simplify right side
    35,357.68x = 1,411,785,379.29
  5. Step 5: Solve for x
    x = 1,411,785,379.29/35,357.68
  6. Step 6: Final answer
    x = 39,928.68

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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.