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Finding the Fourth Proportional to 60,495.80, 90,743.70 and 53,278.70

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Solution

The fourth proportional to 60,495.80, 90,743.70 and 53,278.70 is: 79,918.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,495.80 : 90,743.70 = 53,278.70 : x
  2. Step 2: Convert to fraction form
    60,495.80/90,743.70 = 53,278.70/x
  3. Step 3: Cross multiply
    60,495.80x = 90,743.70 × 53,278.70
  4. Step 4: Simplify right side
    60,495.80x = 4,834,706,369.19
  5. Step 5: Solve for x
    x = 4,834,706,369.19/60,495.80
  6. Step 6: Final answer
    x = 79,918.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.