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Finding the Fourth Proportional to 7,070.94, 9,756.35 and 4,276.38

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Solution

The fourth proportional to 7,070.94, 9,756.35 and 4,276.38 is: 5,900.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.94 : 9,756.35 = 4,276.38 : x
  2. Step 2: Convert to fraction form
    7,070.94/9,756.35 = 4,276.38/x
  3. Step 3: Cross multiply
    7,070.94x = 9,756.35 × 4,276.38
  4. Step 4: Simplify right side
    7,070.94x = 41,721,860.01
  5. Step 5: Solve for x
    x = 41,721,860.01/7,070.94
  6. Step 6: Final answer
    x = 5,900.47

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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.