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Finding the Fourth Proportional to 35,605.84, 53,412.42 and 13,437.88

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Solution

The fourth proportional to 35,605.84, 53,412.42 and 13,437.88 is: 20,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,605.84 : 53,412.42 = 13,437.88 : x
  2. Step 2: Convert to fraction form
    35,605.84/53,412.42 = 13,437.88/x
  3. Step 3: Cross multiply
    35,605.84x = 53,412.42 × 13,437.88
  4. Step 4: Simplify right side
    35,605.84x = 717,749,690.47
  5. Step 5: Solve for x
    x = 717,749,690.47/35,605.84
  6. Step 6: Final answer
    x = 20,158.20

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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.