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Finding the Fourth Proportional to 59,979.40, 89,504.09 and 49,611.40

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Solution

The fourth proportional to 59,979.40, 89,504.09 and 49,611.40 is: 74,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,979.40 : 89,504.09 = 49,611.40 : x
  2. Step 2: Convert to fraction form
    59,979.40/89,504.09 = 49,611.40/x
  3. Step 3: Cross multiply
    59,979.40x = 89,504.09 × 49,611.40
  4. Step 4: Simplify right side
    59,979.40x = 4,440,423,210.63
  5. Step 5: Solve for x
    x = 4,440,423,210.63/59,979.40
  6. Step 6: Final answer
    x = 74,032.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.