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Finding the Fourth Proportional to 7,653.44, 10,561.86 and 4,509.63

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Solution

The fourth proportional to 7,653.44, 10,561.86 and 4,509.63 is: 6,223.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.44 : 10,561.86 = 4,509.63 : x
  2. Step 2: Convert to fraction form
    7,653.44/10,561.86 = 4,509.63/x
  3. Step 3: Cross multiply
    7,653.44x = 10,561.86 × 4,509.63
  4. Step 4: Simplify right side
    7,653.44x = 47,630,080.71
  5. Step 5: Solve for x
    x = 47,630,080.71/7,653.44
  6. Step 6: Final answer
    x = 6,223.35

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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.