Home / 39,688.81-59,533.22-11,986.81

Finding the Fourth Proportional to 39,688.81, 59,533.22 and 11,986.81

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Solution

The fourth proportional to 39,688.81, 59,533.22 and 11,986.81 is: 17,980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,688.81 : 59,533.22 = 11,986.81 : x
  2. Step 2: Convert to fraction form
    39,688.81/59,533.22 = 11,986.81/x
  3. Step 3: Cross multiply
    39,688.81x = 59,533.22 × 11,986.81
  4. Step 4: Simplify right side
    39,688.81x = 713,613,545.66
  5. Step 5: Solve for x
    x = 713,613,545.66/39,688.81
  6. Step 6: Final answer
    x = 17,980.22

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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.