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Finding the Fourth Proportional to 35,497.60, 53,246.40 and 30,220.45

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Solution

The fourth proportional to 35,497.60, 53,246.40 and 30,220.45 is: 45,330.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,497.60 : 53,246.40 = 30,220.45 : x
  2. Step 2: Convert to fraction form
    35,497.60/53,246.40 = 30,220.45/x
  3. Step 3: Cross multiply
    35,497.60x = 53,246.40 × 30,220.45
  4. Step 4: Simplify right side
    35,497.60x = 1,609,130,168.88
  5. Step 5: Solve for x
    x = 1,609,130,168.88/35,497.60
  6. Step 6: Final answer
    x = 45,330.68

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Double scale
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Similar ratio
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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.