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Finding the Fourth Proportional to 35,699.50, 49,264.05 and 19,785.43

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Solution

The fourth proportional to 35,699.50, 49,264.05 and 19,785.43 is: 27,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,699.50 : 49,264.05 = 19,785.43 : x
  2. Step 2: Convert to fraction form
    35,699.50/49,264.05 = 19,785.43/x
  3. Step 3: Cross multiply
    35,699.50x = 49,264.05 × 19,785.43
  4. Step 4: Simplify right side
    35,699.50x = 974,710,412.79
  5. Step 5: Solve for x
    x = 974,710,412.79/35,699.50
  6. Step 6: Final answer
    x = 27,303.20

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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.