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Finding the Fourth Proportional to 70,548.17, 105,820.63 and 17,957.70

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Solution

The fourth proportional to 70,548.17, 105,820.63 and 17,957.70 is: 26,936.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,548.17 : 105,820.63 = 17,957.70 : x
  2. Step 2: Convert to fraction form
    70,548.17/105,820.63 = 17,957.70/x
  3. Step 3: Cross multiply
    70,548.17x = 105,820.63 × 17,957.70
  4. Step 4: Simplify right side
    70,548.17x = 1,900,295,082.46
  5. Step 5: Solve for x
    x = 1,900,295,082.46/70,548.17
  6. Step 6: Final answer
    x = 26,936.14

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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.