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Finding the Fourth Proportional to 8,435.66, 11,642.87 and 4,900.01

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Solution

The fourth proportional to 8,435.66, 11,642.87 and 4,900.01 is: 6,762.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.66 : 11,642.87 = 4,900.01 : x
  2. Step 2: Convert to fraction form
    8,435.66/11,642.87 = 4,900.01/x
  3. Step 3: Cross multiply
    8,435.66x = 11,642.87 × 4,900.01
  4. Step 4: Simplify right side
    8,435.66x = 57,050,133.46
  5. Step 5: Solve for x
    x = 57,050,133.46/8,435.66
  6. Step 6: Final answer
    x = 6,762.98

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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.