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Finding the Fourth Proportional to 48,798.95, 67,343.07 and 28,656.07

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Solution

The fourth proportional to 48,798.95, 67,343.07 and 28,656.07 is: 39,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,798.95 : 67,343.07 = 28,656.07 : x
  2. Step 2: Convert to fraction form
    48,798.95/67,343.07 = 28,656.07/x
  3. Step 3: Cross multiply
    48,798.95x = 67,343.07 × 28,656.07
  4. Step 4: Simplify right side
    48,798.95x = 1,929,787,727.93
  5. Step 5: Solve for x
    x = 1,929,787,727.93/48,798.95
  6. Step 6: Final answer
    x = 39,545.68

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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.