Home / 48,913.48-67,494-28,758.70

Finding the Fourth Proportional to 48,913.48, 67,494 and 28,758.70

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Solution

The fourth proportional to 48,913.48, 67,494 and 28,758.70 is: 39,683.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,913.48 : 67,494 = 28,758.70 : x
  2. Step 2: Convert to fraction form
    48,913.48/67,494 = 28,758.70/x
  3. Step 3: Cross multiply
    48,913.48x = 67,494 × 28,758.70
  4. Step 4: Simplify right side
    48,913.48x = 1,941,039,697.80
  5. Step 5: Solve for x
    x = 1,941,039,697.80/48,913.48
  6. Step 6: Final answer
    x = 39,683.12

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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.