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Finding the Fourth Proportional to 61,816.40, 85,300.36 and 37,944.08

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Solution

The fourth proportional to 61,816.40, 85,300.36 and 37,944.08 is: 52,358.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,816.40 : 85,300.36 = 37,944.08 : x
  2. Step 2: Convert to fraction form
    61,816.40/85,300.36 = 37,944.08/x
  3. Step 3: Cross multiply
    61,816.40x = 85,300.36 × 37,944.08
  4. Step 4: Simplify right side
    61,816.40x = 3,236,643,683.87
  5. Step 5: Solve for x
    x = 3,236,643,683.87/61,816.40
  6. Step 6: Final answer
    x = 52,358.98

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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.