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Finding the Fourth Proportional to 37,485.90, 56,228.85 and 9,783.90

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Solution

The fourth proportional to 37,485.90, 56,228.85 and 9,783.90 is: 14,675.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,485.90 : 56,228.85 = 9,783.90 : x
  2. Step 2: Convert to fraction form
    37,485.90/56,228.85 = 9,783.90/x
  3. Step 3: Cross multiply
    37,485.90x = 56,228.85 × 9,783.90
  4. Step 4: Simplify right side
    37,485.90x = 550,137,445.52
  5. Step 5: Solve for x
    x = 550,137,445.52/37,485.90
  6. Step 6: Final answer
    x = 14,675.85

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Double scale
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Similar ratio
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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.