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Finding the Fourth Proportional to 10,280.08, 15,420.90 and 4,037.08

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Solution

The fourth proportional to 10,280.08, 15,420.90 and 4,037.08 is: 6,055.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.08 : 15,420.90 = 4,037.08 : x
  2. Step 2: Convert to fraction form
    10,280.08/15,420.90 = 4,037.08/x
  3. Step 3: Cross multiply
    10,280.08x = 15,420.90 × 4,037.08
  4. Step 4: Simplify right side
    10,280.08x = 62,255,406.97
  5. Step 5: Solve for x
    x = 62,255,406.97/10,280.08
  6. Step 6: Final answer
    x = 6,055.93

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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.