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Finding the Fourth Proportional to 36,008.60, 53,918.40 and 25,421.45

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Solution

The fourth proportional to 36,008.60, 53,918.40 and 25,421.45 is: 38,065.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,008.60 : 53,918.40 = 25,421.45 : x
  2. Step 2: Convert to fraction form
    36,008.60/53,918.40 = 25,421.45/x
  3. Step 3: Cross multiply
    36,008.60x = 53,918.40 × 25,421.45
  4. Step 4: Simplify right side
    36,008.60x = 1,370,683,909.68
  5. Step 5: Solve for x
    x = 1,370,683,909.68/36,008.60
  6. Step 6: Final answer
    x = 38,065.46

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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.