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Finding the Fourth Proportional to 18,854.60, 28,281.46 and 9,492.11

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Solution

The fourth proportional to 18,854.60, 28,281.46 and 9,492.11 is: 14,237.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,854.60 : 28,281.46 = 9,492.11 : x
  2. Step 2: Convert to fraction form
    18,854.60/28,281.46 = 9,492.11/x
  3. Step 3: Cross multiply
    18,854.60x = 28,281.46 × 9,492.11
  4. Step 4: Simplify right side
    18,854.60x = 268,450,599.74
  5. Step 5: Solve for x
    x = 268,450,599.74/18,854.60
  6. Step 6: Final answer
    x = 14,237.94

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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.