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Finding the Fourth Proportional to 7,661.60, 10,573.02 and 4,477.08

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Solution

The fourth proportional to 7,661.60, 10,573.02 and 4,477.08 is: 6,178.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.60 : 10,573.02 = 4,477.08 : x
  2. Step 2: Convert to fraction form
    7,661.60/10,573.02 = 4,477.08/x
  3. Step 3: Cross multiply
    7,661.60x = 10,573.02 × 4,477.08
  4. Step 4: Simplify right side
    7,661.60x = 47,336,256.38
  5. Step 5: Solve for x
    x = 47,336,256.38/7,661.60
  6. Step 6: Final answer
    x = 6,178.38

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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.