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Finding the Fourth Proportional to 64,678.74, 97,128.47 and 35,154.24

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Solution

The fourth proportional to 64,678.74, 97,128.47 and 35,154.24 is: 52,791.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,678.74 : 97,128.47 = 35,154.24 : x
  2. Step 2: Convert to fraction form
    64,678.74/97,128.47 = 35,154.24/x
  3. Step 3: Cross multiply
    64,678.74x = 97,128.47 × 35,154.24
  4. Step 4: Simplify right side
    64,678.74x = 3,414,477,545.21
  5. Step 5: Solve for x
    x = 3,414,477,545.21/64,678.74
  6. Step 6: Final answer
    x = 52,791.34

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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.