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Finding the Fourth Proportional to 7,753.60, 10,700.40 and 4,395.16

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Solution

The fourth proportional to 7,753.60, 10,700.40 and 4,395.16 is: 6,065.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,753.60 : 10,700.40 = 4,395.16 : x
  2. Step 2: Convert to fraction form
    7,753.60/10,700.40 = 4,395.16/x
  3. Step 3: Cross multiply
    7,753.60x = 10,700.40 × 4,395.16
  4. Step 4: Simplify right side
    7,753.60x = 47,029,970.06
  5. Step 5: Solve for x
    x = 47,029,970.06/7,753.60
  6. Step 6: Final answer
    x = 6,065.57

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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.