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Finding the Fourth Proportional to 7,904.79, 10,908.57 and 4,368

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Solution

The fourth proportional to 7,904.79, 10,908.57 and 4,368 is: 6,027.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,904.79 : 10,908.57 = 4,368 : x
  2. Step 2: Convert to fraction form
    7,904.79/10,908.57 = 4,368/x
  3. Step 3: Cross multiply
    7,904.79x = 10,908.57 × 4,368
  4. Step 4: Simplify right side
    7,904.79x = 47,648,633.76
  5. Step 5: Solve for x
    x = 47,648,633.76/7,904.79
  6. Step 6: Final answer
    x = 6,027.82

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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.