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Finding the Fourth Proportional to 64,011.01, 88,351.01 and 38,881.57

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Solution

The fourth proportional to 64,011.01, 88,351.01 and 38,881.57 is: 53,666.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,011.01 : 88,351.01 = 38,881.57 : x
  2. Step 2: Convert to fraction form
    64,011.01/88,351.01 = 38,881.57/x
  3. Step 3: Cross multiply
    64,011.01x = 88,351.01 × 38,881.57
  4. Step 4: Simplify right side
    64,011.01x = 3,435,225,979.89
  5. Step 5: Solve for x
    x = 3,435,225,979.89/64,011.01
  6. Step 6: Final answer
    x = 53,666.17

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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.