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Finding the Fourth Proportional to 65,592.98, 90,515.63 and 38,744.18

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Solution

The fourth proportional to 65,592.98, 90,515.63 and 38,744.18 is: 53,465.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,592.98 : 90,515.63 = 38,744.18 : x
  2. Step 2: Convert to fraction form
    65,592.98/90,515.63 = 38,744.18/x
  3. Step 3: Cross multiply
    65,592.98x = 90,515.63 × 38,744.18
  4. Step 4: Simplify right side
    65,592.98x = 3,506,953,861.53
  5. Step 5: Solve for x
    x = 3,506,953,861.53/65,592.98
  6. Step 6: Final answer
    x = 53,465.38

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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.