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Finding the Fourth Proportional to 65,894.38, 90,950.65 and 37,616.47

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Solution

The fourth proportional to 65,894.38, 90,950.65 and 37,616.47 is: 51,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,894.38 : 90,950.65 = 37,616.47 : x
  2. Step 2: Convert to fraction form
    65,894.38/90,950.65 = 37,616.47/x
  3. Step 3: Cross multiply
    65,894.38x = 90,950.65 × 37,616.47
  4. Step 4: Simplify right side
    65,894.38x = 3,421,242,671.60
  5. Step 5: Solve for x
    x = 3,421,242,671.60/65,894.38
  6. Step 6: Final answer
    x = 51,920.10

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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.