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Finding the Fourth Proportional to 35,699.76, 49,264.96 and 19,783.88

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Solution

The fourth proportional to 35,699.76, 49,264.96 and 19,783.88 is: 27,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,699.76 : 49,264.96 = 19,783.88 : x
  2. Step 2: Convert to fraction form
    35,699.76/49,264.96 = 19,783.88/x
  3. Step 3: Cross multiply
    35,699.76x = 49,264.96 × 19,783.88
  4. Step 4: Simplify right side
    35,699.76x = 974,652,056.84
  5. Step 5: Solve for x
    x = 974,652,056.84/35,699.76
  6. Step 6: Final answer
    x = 27,301.36

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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.