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Finding the Fourth Proportional to 7,852.58, 10,836.16 and 4,315.90

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Solution

The fourth proportional to 7,852.58, 10,836.16 and 4,315.90 is: 5,955.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,852.58 : 10,836.16 = 4,315.90 : x
  2. Step 2: Convert to fraction form
    7,852.58/10,836.16 = 4,315.90/x
  3. Step 3: Cross multiply
    7,852.58x = 10,836.16 × 4,315.90
  4. Step 4: Simplify right side
    7,852.58x = 46,767,782.94
  5. Step 5: Solve for x
    x = 46,767,782.94/7,852.58
  6. Step 6: Final answer
    x = 5,955.72

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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.