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Finding the Fourth Proportional to 35,456.70, 48,931.28 and 19,542.18

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Solution

The fourth proportional to 35,456.70, 48,931.28 and 19,542.18 is: 26,968.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,456.70 : 48,931.28 = 19,542.18 : x
  2. Step 2: Convert to fraction form
    35,456.70/48,931.28 = 19,542.18/x
  3. Step 3: Cross multiply
    35,456.70x = 48,931.28 × 19,542.18
  4. Step 4: Simplify right side
    35,456.70x = 956,223,783.68
  5. Step 5: Solve for x
    x = 956,223,783.68/35,456.70
  6. Step 6: Final answer
    x = 26,968.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.