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Finding the Fourth Proportional to 65,244.49, 90,043.65 and 36,564.01

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Solution

The fourth proportional to 65,244.49, 90,043.65 and 36,564.01 is: 50,461.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,244.49 : 90,043.65 = 36,564.01 : x
  2. Step 2: Convert to fraction form
    65,244.49/90,043.65 = 36,564.01/x
  3. Step 3: Cross multiply
    65,244.49x = 90,043.65 × 36,564.01
  4. Step 4: Simplify right side
    65,244.49x = 3,292,356,693.93
  5. Step 5: Solve for x
    x = 3,292,356,693.93/65,244.49
  6. Step 6: Final answer
    x = 50,461.84

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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.