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Finding the Fourth Proportional to 16,607.48, 22,900.74 and 10,639.40

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Solution

The fourth proportional to 16,607.48, 22,900.74 and 10,639.40 is: 14,671.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,607.48 : 22,900.74 = 10,639.40 : x
  2. Step 2: Convert to fraction form
    16,607.48/22,900.74 = 10,639.40/x
  3. Step 3: Cross multiply
    16,607.48x = 22,900.74 × 10,639.40
  4. Step 4: Simplify right side
    16,607.48x = 243,650,133.16
  5. Step 5: Solve for x
    x = 243,650,133.16/16,607.48
  6. Step 6: Final answer
    x = 14,671.11

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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.