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Finding the Fourth Proportional to 55,574.94, 83,361.99 and 47,235.18

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Solution

The fourth proportional to 55,574.94, 83,361.99 and 47,235.18 is: 70,852.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,574.94 : 83,361.99 = 47,235.18 : x
  2. Step 2: Convert to fraction form
    55,574.94/83,361.99 = 47,235.18/x
  3. Step 3: Cross multiply
    55,574.94x = 83,361.99 × 47,235.18
  4. Step 4: Simplify right side
    55,574.94x = 3,937,618,602.81
  5. Step 5: Solve for x
    x = 3,937,618,602.81/55,574.94
  6. Step 6: Final answer
    x = 70,852.41

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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.