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Finding the Fourth Proportional to 64,809.06, 89,436.50 and 35,001.06

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Solution

The fourth proportional to 64,809.06, 89,436.50 and 35,001.06 is: 48,301.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,809.06 : 89,436.50 = 35,001.06 : x
  2. Step 2: Convert to fraction form
    64,809.06/89,436.50 = 35,001.06/x
  3. Step 3: Cross multiply
    64,809.06x = 89,436.50 × 35,001.06
  4. Step 4: Simplify right side
    64,809.06x = 3,130,372,302.69
  5. Step 5: Solve for x
    x = 3,130,372,302.69/64,809.06
  6. Step 6: Final answer
    x = 48,301.46

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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.