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Finding the Fourth Proportional to 9,048.66, 12,487.95 and 5,271.63

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Solution

The fourth proportional to 9,048.66, 12,487.95 and 5,271.63 is: 7,275.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,048.66 : 12,487.95 = 5,271.63 : x
  2. Step 2: Convert to fraction form
    9,048.66/12,487.95 = 5,271.63/x
  3. Step 3: Cross multiply
    9,048.66x = 12,487.95 × 5,271.63
  4. Step 4: Simplify right side
    9,048.66x = 65,831,851.86
  5. Step 5: Solve for x
    x = 65,831,851.86/9,048.66
  6. Step 6: Final answer
    x = 7,275.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.