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Finding the Fourth Proportional to 7,913.35, 10,970.37 and 7,492.01

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Solution

The fourth proportional to 7,913.35, 10,970.37 and 7,492.01 is: 10,386.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.35 : 10,970.37 = 7,492.01 : x
  2. Step 2: Convert to fraction form
    7,913.35/10,970.37 = 7,492.01/x
  3. Step 3: Cross multiply
    7,913.35x = 10,970.37 × 7,492.01
  4. Step 4: Simplify right side
    7,913.35x = 82,190,135.94
  5. Step 5: Solve for x
    x = 82,190,135.94/7,913.35
  6. Step 6: Final answer
    x = 10,386.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.