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Finding the Fourth Proportional to 69,699.19, 96,009 and 56,232.76

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Solution

The fourth proportional to 69,699.19, 96,009 and 56,232.76 is: 77,459.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,699.19 : 96,009 = 56,232.76 : x
  2. Step 2: Convert to fraction form
    69,699.19/96,009 = 56,232.76/x
  3. Step 3: Cross multiply
    69,699.19x = 96,009 × 56,232.76
  4. Step 4: Simplify right side
    69,699.19x = 5,398,851,054.84
  5. Step 5: Solve for x
    x = 5,398,851,054.84/69,699.19
  6. Step 6: Final answer
    x = 77,459.31

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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.