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Finding the Fourth Proportional to 48,407.79, 66,803.22 and 27,988.32

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Solution

The fourth proportional to 48,407.79, 66,803.22 and 27,988.32 is: 38,624.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,407.79 : 66,803.22 = 27,988.32 : x
  2. Step 2: Convert to fraction form
    48,407.79/66,803.22 = 27,988.32/x
  3. Step 3: Cross multiply
    48,407.79x = 66,803.22 × 27,988.32
  4. Step 4: Simplify right side
    48,407.79x = 1,869,709,898.39
  5. Step 5: Solve for x
    x = 1,869,709,898.39/48,407.79
  6. Step 6: Final answer
    x = 38,624.15

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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.