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Finding the Fourth Proportional to 14,718.60, 22,088.70 and 9,786.60

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Solution

The fourth proportional to 14,718.60, 22,088.70 and 9,786.60 is: 14,687.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.60 : 22,088.70 = 9,786.60 : x
  2. Step 2: Convert to fraction form
    14,718.60/22,088.70 = 9,786.60/x
  3. Step 3: Cross multiply
    14,718.60x = 22,088.70 × 9,786.60
  4. Step 4: Simplify right side
    14,718.60x = 216,173,271.42
  5. Step 5: Solve for x
    x = 216,173,271.42/14,718.60
  6. Step 6: Final answer
    x = 14,687.08

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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.