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Finding the Fourth Proportional to 59,975.91, 89,937.54 and 31,889.16

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Solution

The fourth proportional to 59,975.91, 89,937.54 and 31,889.16 is: 47,819.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,975.91 : 89,937.54 = 31,889.16 : x
  2. Step 2: Convert to fraction form
    59,975.91/89,937.54 = 31,889.16/x
  3. Step 3: Cross multiply
    59,975.91x = 89,937.54 × 31,889.16
  4. Step 4: Simplify right side
    59,975.91x = 2,868,032,603.07
  5. Step 5: Solve for x
    x = 2,868,032,603.07/59,975.91
  6. Step 6: Final answer
    x = 47,819.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.