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Finding the Fourth Proportional to 64,326.40, 88,775.13 and 38,839.03

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Solution

The fourth proportional to 64,326.40, 88,775.13 and 38,839.03 is: 53,600.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,326.40 : 88,775.13 = 38,839.03 : x
  2. Step 2: Convert to fraction form
    64,326.40/88,775.13 = 38,839.03/x
  3. Step 3: Cross multiply
    64,326.40x = 88,775.13 × 38,839.03
  4. Step 4: Simplify right side
    64,326.40x = 3,447,939,937.32
  5. Step 5: Solve for x
    x = 3,447,939,937.32/64,326.40
  6. Step 6: Final answer
    x = 53,600.70

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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.