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Finding the Fourth Proportional to 30,492.60, 45,725.46 and 9,718.20

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Solution

The fourth proportional to 30,492.60, 45,725.46 and 9,718.20 is: 14,573.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,492.60 : 45,725.46 = 9,718.20 : x
  2. Step 2: Convert to fraction form
    30,492.60/45,725.46 = 9,718.20/x
  3. Step 3: Cross multiply
    30,492.60x = 45,725.46 × 9,718.20
  4. Step 4: Simplify right side
    30,492.60x = 444,369,165.37
  5. Step 5: Solve for x
    x = 444,369,165.37/30,492.60
  6. Step 6: Final answer
    x = 14,573.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.