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Finding the Fourth Proportional to 65,922, 90,972.42 and 37,627.08

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Solution

The fourth proportional to 65,922, 90,972.42 and 37,627.08 is: 51,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,922 : 90,972.42 = 37,627.08 : x
  2. Step 2: Convert to fraction form
    65,922/90,972.42 = 37,627.08/x
  3. Step 3: Cross multiply
    65,922x = 90,972.42 × 37,627.08
  4. Step 4: Simplify right side
    65,922x = 3,423,026,525.13
  5. Step 5: Solve for x
    x = 3,423,026,525.13/65,922
  6. Step 6: Final answer
    x = 51,925.40

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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.