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Finding the Fourth Proportional to 10,607.10, 15,903.08 and 4,981.63

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Solution

The fourth proportional to 10,607.10, 15,903.08 and 4,981.63 is: 7,468.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,607.10 : 15,903.08 = 4,981.63 : x
  2. Step 2: Convert to fraction form
    10,607.10/15,903.08 = 4,981.63/x
  3. Step 3: Cross multiply
    10,607.10x = 15,903.08 × 4,981.63
  4. Step 4: Simplify right side
    10,607.10x = 79,223,292.75
  5. Step 5: Solve for x
    x = 79,223,292.75/10,607.10
  6. Step 6: Final answer
    x = 7,468.89

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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.