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Finding the Fourth Proportional to 8,363.86, 12,547.88 and 5,903.48

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Solution

The fourth proportional to 8,363.86, 12,547.88 and 5,903.48 is: 8,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.86 : 12,547.88 = 5,903.48 : x
  2. Step 2: Convert to fraction form
    8,363.86/12,547.88 = 5,903.48/x
  3. Step 3: Cross multiply
    8,363.86x = 12,547.88 × 5,903.48
  4. Step 4: Simplify right side
    8,363.86x = 74,076,158.62
  5. Step 5: Solve for x
    x = 74,076,158.62/8,363.86
  6. Step 6: Final answer
    x = 8,856.70

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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.