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Finding the Fourth Proportional to 9,672.58, 13,347.48 and 5,423.32

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Solution

The fourth proportional to 9,672.58, 13,347.48 and 5,423.32 is: 7,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,672.58 : 13,347.48 = 5,423.32 : x
  2. Step 2: Convert to fraction form
    9,672.58/13,347.48 = 5,423.32/x
  3. Step 3: Cross multiply
    9,672.58x = 13,347.48 × 5,423.32
  4. Step 4: Simplify right side
    9,672.58x = 72,387,655.23
  5. Step 5: Solve for x
    x = 72,387,655.23/9,672.58
  6. Step 6: Final answer
    x = 7,483.80

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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.