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Finding the Fourth Proportional to 62,186.40, 85,817.54 and 35,330.40

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Solution

The fourth proportional to 62,186.40, 85,817.54 and 35,330.40 is: 48,756.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,186.40 : 85,817.54 = 35,330.40 : x
  2. Step 2: Convert to fraction form
    62,186.40/85,817.54 = 35,330.40/x
  3. Step 3: Cross multiply
    62,186.40x = 85,817.54 × 35,330.40
  4. Step 4: Simplify right side
    62,186.40x = 3,031,968,015.22
  5. Step 5: Solve for x
    x = 3,031,968,015.22/62,186.40
  6. Step 6: Final answer
    x = 48,756.13

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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.