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Finding the Fourth Proportional to 8,913.66, 12,300.94 and 4,935.01

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Solution

The fourth proportional to 8,913.66, 12,300.94 and 4,935.01 is: 6,810.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.66 : 12,300.94 = 4,935.01 : x
  2. Step 2: Convert to fraction form
    8,913.66/12,300.94 = 4,935.01/x
  3. Step 3: Cross multiply
    8,913.66x = 12,300.94 × 4,935.01
  4. Step 4: Simplify right side
    8,913.66x = 60,705,261.91
  5. Step 5: Solve for x
    x = 60,705,261.91/8,913.66
  6. Step 6: Final answer
    x = 6,810.36

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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.