Home / 43,686.60-65,384.10-38,437.80

Finding the Fourth Proportional to 43,686.60, 65,384.10 and 38,437.80

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Solution

The fourth proportional to 43,686.60, 65,384.10 and 38,437.80 is: 57,528.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,686.60 : 65,384.10 = 38,437.80 : x
  2. Step 2: Convert to fraction form
    43,686.60/65,384.10 = 38,437.80/x
  3. Step 3: Cross multiply
    43,686.60x = 65,384.10 × 38,437.80
  4. Step 4: Simplify right side
    43,686.60x = 2,513,220,958.98
  5. Step 5: Solve for x
    x = 2,513,220,958.98/43,686.60
  6. Step 6: Final answer
    x = 57,528.42

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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.