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Finding the Fourth Proportional to 65,277.84, 90,075.42 and 36,590.88

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Solution

The fourth proportional to 65,277.84, 90,075.42 and 36,590.88 is: 50,490.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,277.84 : 90,075.42 = 36,590.88 : x
  2. Step 2: Convert to fraction form
    65,277.84/90,075.42 = 36,590.88/x
  3. Step 3: Cross multiply
    65,277.84x = 90,075.42 × 36,590.88
  4. Step 4: Simplify right side
    65,277.84x = 3,295,938,884.17
  5. Step 5: Solve for x
    x = 3,295,938,884.17/65,277.84
  6. Step 6: Final answer
    x = 50,490.93

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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.