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Finding the Fourth Proportional to 69,683.51, 96,176.72 and 45,442.39

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Solution

The fourth proportional to 69,683.51, 96,176.72 and 45,442.39 is: 62,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,683.51 : 96,176.72 = 45,442.39 : x
  2. Step 2: Convert to fraction form
    69,683.51/96,176.72 = 45,442.39/x
  3. Step 3: Cross multiply
    69,683.51x = 96,176.72 × 45,442.39
  4. Step 4: Simplify right side
    69,683.51x = 4,370,499,551.51
  5. Step 5: Solve for x
    x = 4,370,499,551.51/69,683.51
  6. Step 6: Final answer
    x = 62,719.28

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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.