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Finding the Fourth Proportional to 9,353.53, 12,899.44 and 7,225.86

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Solution

The fourth proportional to 9,353.53, 12,899.44 and 7,225.86 is: 9,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,353.53 : 12,899.44 = 7,225.86 : x
  2. Step 2: Convert to fraction form
    9,353.53/12,899.44 = 7,225.86/x
  3. Step 3: Cross multiply
    9,353.53x = 12,899.44 × 7,225.86
  4. Step 4: Simplify right side
    9,353.53x = 93,209,547.52
  5. Step 5: Solve for x
    x = 93,209,547.52/9,353.53
  6. Step 6: Final answer
    x = 9,965.17

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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.