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Finding the Fourth Proportional to 8,316.61, 12,468.28 and 4,802.63

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Solution

The fourth proportional to 8,316.61, 12,468.28 and 4,802.63 is: 7,200.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.61 : 12,468.28 = 4,802.63 : x
  2. Step 2: Convert to fraction form
    8,316.61/12,468.28 = 4,802.63/x
  3. Step 3: Cross multiply
    8,316.61x = 12,468.28 × 4,802.63
  4. Step 4: Simplify right side
    8,316.61x = 59,880,473.24
  5. Step 5: Solve for x
    x = 59,880,473.24/8,316.61
  6. Step 6: Final answer
    x = 7,200.11

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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.