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Finding the Fourth Proportional to 30,572.48, 45,860.80 and 13,042.24

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Solution

The fourth proportional to 30,572.48, 45,860.80 and 13,042.24 is: 19,564.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,572.48 : 45,860.80 = 13,042.24 : x
  2. Step 2: Convert to fraction form
    30,572.48/45,860.80 = 13,042.24/x
  3. Step 3: Cross multiply
    30,572.48x = 45,860.80 × 13,042.24
  4. Step 4: Simplify right side
    30,572.48x = 598,127,560.19
  5. Step 5: Solve for x
    x = 598,127,560.19/30,572.48
  6. Step 6: Final answer
    x = 19,564.25

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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.