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Finding the Fourth Proportional to 40,353.48, 55,681.80 and 22,448.70

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Solution

The fourth proportional to 40,353.48, 55,681.80 and 22,448.70 is: 30,975.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,353.48 : 55,681.80 = 22,448.70 : x
  2. Step 2: Convert to fraction form
    40,353.48/55,681.80 = 22,448.70/x
  3. Step 3: Cross multiply
    40,353.48x = 55,681.80 × 22,448.70
  4. Step 4: Simplify right side
    40,353.48x = 1,249,984,023.66
  5. Step 5: Solve for x
    x = 1,249,984,023.66/40,353.48
  6. Step 6: Final answer
    x = 30,975.87

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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.