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Finding the Fourth Proportional to 85,994.65, 118,669.21 and 47,756.17

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Solution

The fourth proportional to 85,994.65, 118,669.21 and 47,756.17 is: 65,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,994.65 : 118,669.21 = 47,756.17 : x
  2. Step 2: Convert to fraction form
    85,994.65/118,669.21 = 47,756.17/x
  3. Step 3: Cross multiply
    85,994.65x = 118,669.21 × 47,756.17
  4. Step 4: Simplify right side
    85,994.65x = 5,667,186,966.53
  5. Step 5: Solve for x
    x = 5,667,186,966.53/85,994.65
  6. Step 6: Final answer
    x = 65,901.62

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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.